List of International Space Station spacewalks

On the International Space Station (ISS), extravehicular activities are major events in the building and maintaining of the orbital laboratory,[1] and are performed to install new components, re-wire systems, modules, and equipment, and to monitor, install, and retrieve scientific experiments.[2][3]

An artist's rendering of the fully assembled International Space Station, as it would appear from a spacecraft flying overhead

Jerry Ross during one of the first spacewalks that began assembly of the International Space Station

Due to the complexity of building a station in space, space agencies train astronauts extensively, preparing them to encounter surprises during spacewalks, teaching them how to assemble special tools and equipment, and carefully coordinating every activity during spacewalks.[1] From 1998 to 2005, thirty-seven Space Shuttle missions were scheduled to assemble, outfit and begin experiments and research aboard the station.[1]

The initial spacewalk to begin the assembly of the International Space Station was held on December 7, 1998,[4] following the launch of the first section of the station, Zarya, from Baikonur Cosmodrome, Kazakhstan, on November 20, 1998.[5] The spacewalk attached the U.S.-built Unity node to Zarya.[4] The longest spacewalk was performed on March 11, 2001, when STS-102 crew members Susan J. Helms and James S. Voss conducted a full spacewalk, and then returned to the airlock, but remained in their suits ready to exit the airlock again in case the robotics operations ran into problems. The total time for that spacewalk was eight hours and fifty-six minutes.[6]

As of February 1, 2021, there have been 234 spacewalks devoted to assembly and maintenance of the International Space Station totaling 1471 hours and 7 minutes. Thirty-seven of those spacewalks were performed from a shuttle, ninety-three from the Quest Joint Airlock, thirty-two from the Pirs docking compartment, and two from the transfer compartment at the forward end of the Zvezda Service Module.[7][8]

*denotes spacewalks performed from the Pirs docking compartment in Russian Orlan suits.
^denotes spacewalks performed from the Poisk module in Russian Orlan suits.
†denotes spacewalks performed from the visiting space shuttle's airlock.
‡denotes the one EVA and one IVA performed from the transfer compartment at the forward end of the Zvezda Service Module.
All other spacewalks were performed from the Quest airlock.
ISS Expedition spacewalks are separated from shuttle spacewalks by a separator.

1998–1999

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
1.	STS-88 EVA 1 †	Jerry L. Ross James H. Newman	December 7, 1998 22:10	December 8, 1998 05:31	7 hours, 21 minutes
		Connected computer and electrical cables between the Unity node, the two mating adapters attached to either end of Unity, and the Zarya Functional Cargo Block (FGB).[4]
2.	STS-88 EVA 2 †	Jerry L. Ross James H. Newman	December 9, 1998 20:33	December 10, 1998 03:35	7 hours, 02 minutes
		Installed two box-like antennas on the outside of the Unity module that are part of the S-band early communications system.[9]
3.	STS-88 EVA 3 †	Jerry L. Ross James H. Newman	December 12, 1998 20:33	December 13, 1998 03:32	6 hours, 59 minutes
		Checked on an insulation cover on a cable connection on the lower Pressurized Mating Adapter (PMA 2) to make sure it is fully installed, attached EVA tools on the side of Unity's upper mating adapter (PMA 1) in preparation for future EVAs, and inspected Orbiter Space Vision System targets on Unity.[10]
4.	STS-96 †	Tamara E. Jernigan Daniel T. Barry	May 30, 1999 02:56	May 30, 1999 10:51	7 hours, 55 minutes
		Transferred and installed two cranes from the shuttle's payload bay to locations on the outside of the station. Installed two new portable foot restraints that will fit both American and Russian space boots, and attached three bags filled with tools and handrails that will be used during future assembly operations.[11]

2000

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
5.	STS-101 †	James S. Voss Jeffrey N. Williams	May 22, 2000 01:48	May 22, 2000 08:32	6 hours, 44 minutes
		Inspected and secured U.S.-built cargo crane known as the Orbital Replacement Unit Transfer Device, completed assembly of a Russian cargo crane called Strela, and replaced one of Unity's two early communication antennas.[12][13]
6.	STS-106 †	Edward T. Lu Yuri Ivanovich Malenchenko	September 11, 2000 04:47	September 11, 2000 11:01	6 hours, 14 minutes
		Attached cabling that integrated the Zvezda module fully to the rest of the ISS, and constructed and attached a magnetometer that serves as a backup navigation system for the station.[14]
7.	STS-92 EVA 1 †	Leroy Chiao William S. McArthur	October 15, 2000 14:27	October 15, 2000 20:55	6 hours, 28 minutes
		Connected two sets of cables to provide power to heaters and conduits located on the Z1 truss, relocated two communication antenna assemblies, and installed a toolbox for use during future on-orbit construction.[15]
8.	STS-92 EVA 2 †	Michael E. Lopez-Alegria Peter J.K. Wisoff	October 16, 2000 14:15	October 16, 2000 21:22	7 hours, 07 minutes
		Installed the Pressurized Mating Adapter (PMA)-3 docking port, and prepared the Z1 truss for the installation of the solar arrays.[16]
9.	STS-92 EVA 3 †	Leroy Chiao William S. McArthur	October 17, 2000 14:30	October 17, 2000 21:18	6 hours, 48 minutes
		Installed two DC-to-DC converter units atop the station's Z1 Truss.[17]
10.	STS-92 EVA 4 †	Michael E. Lopez-Alegria Peter J.K. Wisoff	October 18, 2000 15:00	October 18, 2000 21:56	6 hours, 56 minutes
		Removed a grapple fixture on the Z1 truss, deployed a Z1 utility tray, Manual Berthing Mechanism latches for Z1 were cycled and opened, and demonstrated the Simplified Aid For EVA Rescue (SAFER) pack's abilities.[18][19]
11.	STS-97 EVA 1 †	Joseph R. Tanner Carlos I. Noriega	December 3, 2000 18:35	December 4, 2000 02:08	7 hours, 33 minutes
		Attached the P6 truss to the Z1 Truss, and prepared the solar arrays for deployment. Prepared the radiator for the power system deployment.[20][21]
12.	STS-97 EVA 2 †	Joseph R. Tanner Carlos I. Noriega	December 5, 2000 17:21	December 5, 2000 23:58	6 hours, 37 minutes
		Configured the space station to use power from the P6. Positioned the S-band antenna for use by the space station. Prepared the station for the arrival of the U. S. Laboratory, Destiny.[22]
13.	STS-97 EVA 3 †	Joseph R. Tanner Carlos I. Noriega	December 7, 2000 16:13	December 7, 2000 21:23	5 hours, 10 minutes
		Positioned a floating potential probe to measure the plasma field surrounding the space station, performed repair work to increase tension in the starboard solar array blankets that did not stretch out completely during deployment, and installed a centerline camera cable outside the Unity node.[23]

2001

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
14.	STS-98 EVA 1 †	Thomas D. Jones Robert L. Curbeam	February 10, 2001 15:50	February 10, 2001 23:24	7 hours, 34 minutes
		Removed protective launch covers and disconnected power and cooling cables between Destiny and Atlantis, while crewmembers inside moved the 3,800-cubic-foot (110 m³) laboratory from the payload bay to its home on the Unity node. Curbeam and Jones then connected electrical, data and cooling lines to the lab, during which a small amount of ammonia crystals leaked from one of the hoses, prompting a decontamination procedure.[24][25]
15.	STS-98 EVA 2 †	Thomas D. Jones Robert L. Curbeam	February 12, 2001 15:59	February 12, 2001 22:49	6 hours, 50 minutes
		Installed the shuttle docking adapter onto Destiny, installed insulating covers over the pins that held Destiny in place during launch, attached a vent to the lab's air system, installed handrails and sockets on the exterior of Destiny, and attached a base for the future space station robotic arm.[26]
16.	STS-98 EVA 3 †	Thomas D. Jones Robert L. Curbeam	February 14, 2001 14:48	February 14, 2001 20:13	5 hours, 25 minutes
		Attached a spare communications antenna to the station, double-checked connections between the Destiny lab and its docking port, released a cooling radiator on the station, inspected solar array connections at the top of the station, and tested the ability of a spacewalker to carry an immobile crew member back to the shuttle airlock. This was the 100th U.S. spacewalk.[27]
17.	STS-102 EVA 1 †	James S. Voss Susan J. Helms	March 11, 2001 05:12	March 11, 2001 14:08	8 hours, 56 minutes
		Prepared Pressurized Mating Adapter-3 for repositioning from Unity’s Earth-facing berth to the port-side berth to make room for Leonardo, the Italian Space Agency-built Multi-Purpose Logistics Module. Removed a Lab Cradle Assembly from the Space Shuttle's cargo bay and installed it on the side of Destiny, and installed a cable tray to Destiny for later use by the station’s robot arm. After re-entering the shuttle's airlock, Voss and Helms remained ready to assist if any troubles installing the docking port were encountered by the crew inside the shuttle. Longest space walk in shuttle history.[6]
18.	STS-102 EVA 2 †	Andrew S. W. Thomas Paul W. Richards	March 13, 2001 05:23	March 13, 2001 11:44	6 hours, 21 minutes
		Installed an External Stowage Platform for spare station parts, attached a spare ammonia coolant pump to the platform, finished connecting several cables put in place on the first EVA for the station's robotic arm. Inspected a Unity node heater connection, and inspected of an exterior experiment, the Floating Potential Probe.[28]
19.	STS-100 EVA 1 †	Chris Hadfield Scott E. Parazynski	April 22, 2001 11:45	April 22, 2001 18:55	7 hours, 10 minutes
		Installed the station's UHF antenna, and the Canadian Space Agency made Canadarm2. Connected cables to give the arm power and allow it to accept computer commands from inside the lab. Hadfield became the first Canadian spacewalker.[29]
20.	STS-100 EVA 2 †	Chris Hadfield Scott E. Parazynski	April 24, 2001 12:34	April 24, 2001 20:14	7 hours, 40 minutes
		Connected the Power Data Grapple Fixture circuits for Canadarm2 onto Destiny, removed an early communications antenna, transferred a spare Direct Current Switching Unit from the shuttle's payload bay to an equipment storage rack on the outside of Destiny.[30]

21.	Expedition 2 ‡	Yury Usachev James Voss	June 8, 2001 14:21	June 8, 2001 14:40	0 hours, 19 minutes
		Installed the docking cone onto the Zarya module, in preparation for the arrival of the Russian Pirs docking compartment. Only EVA to be conducted from the transfer compartment at the forward end of the Zvezda Service Module.[31]

22.	STS-104 EVA 1 †	Michael L. Gernhardt James F. Reilly	July 15, 2001 03:10	July 15, 2001 09:09	5 hours, 59 minutes
		Installed the Quest Joint Airlock onto the Unity node.[32][33][34]
23.	STS-104 EVA 2 †	Michael L. Gernhardt James F. Reilly	July 18, 2001 03:04	July 18, 2001 09:33	6 hours, 29 minutes
		Installed one of two high-pressure nitrogen tanks, and one of two high-pressure oxygen tanks onto Quest, and installed grapple fixture and trunnion covers.[32][34][35]
24.	STS-104 EVA 3	Michael L. Gernhardt James F. Reilly	July 21, 2001 04:35	July 21, 2001 08:37	4 hours, 02 minutes
		First EVA conducted from the Quest airlock. Installed the second high-pressure nitrogen tank, and the second oxygen tank onto the Quest airlock.[34][36][37]
25.	STS-105 EVA 1 †	Daniel T. Barry Patrick G. Forrester	August 16, 2001 13:58	August 16, 2001 20:14	6 hours, 16 minutes
		Installed an Early Ammonia Servicer onto the station's P6 truss, co-location of the foot restraint in a stowed location, and installed the Materials International Space Station Experiment(MISSE)-1 and 2 containers onto the Quest airlock.[38][39]
26.	STS-105 EVA 2 †	Daniel T. Barry Patrick G. Forrester	August 18, 2001 13:42	August 18, 2001 19:11	5 hours, 29 minutes
		Installed heater cables and handrails onto the station's Destiny laboratory.[38][39]

27.	Expedition 3 EVA 1 *	Vladimir Dezhurov Mikhail Tyurin	October 8, 2001 14:24	October 8, 2001 19:22	4 hours, 58 minutes
		Installed cables between the Pirs, and the Zvezda module to allow spacewalk radio communications between the two sections. Installed handrails onto Pirs, and installed an exterior ladder to assist spacewalkers leaving Pirs. Installed a Strela cargo crane.[40]
28.	Expedition 3 EVA 2 *	Vladimir Dezhurov Mikhail Tyurin	October 15, 2001 09:17	October 15, 2001 15:08	5 hours, 51 minutes
		Installed Russian commercial experiments (MPAC-SEEDS) onto the exterior of the Pirs docking compartment.[40]
29.	Expedition 3 EVA 3 *	Vladimir Dezhurov Frank Culbertson	November 12, 2001 21:41	November 13, 2001 02:46	5 hours, 05 minutes
		Connected cables on the exterior of Pirs for the Kurs automated docking system, completed checks of the Strela cargo crane, and inspected and photographed a panel of a solar array on Zvezda that had a portion of a panel not fully unfolded.[40]
30.	Expedition 3 EVA 4 *	Vladimir Dezhurov Mikhail Tyurin	December 3, 2001 13:20	December 3, 2001 16:06	2 hours, 46 minutes
		Removed an obstruction that prevented a Progress resupply ship from firmly docking with the station, and took pictures of the debris and of the docking interface.[40]

31.	STS-108 †	Linda M. Godwin Daniel M. Tani	December 10, 2001 17:52	December 10, 2001 22:04	4 hours, 12 minutes
		Installed insulating blankets around two Beta Gimbal Assemblies that rotate the station's solar array wings, and performed get-ahead tasks in preparation for STS-110's spacewalks.[41][42][43]

2002

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
32.	Expedition 4 EVA 1 *	Yury Onufrienko Carl E. Walz	January 14, 2002 20:59	January 15, 2002 03:02	6 hours, 03 minutes
		Moved the cargo boom for the Russian Strela crane from PMA1 to the exterior of the Pirs docking compartment, installed an amateur radio antenna onto the end of Zvezda.[44]
33.	Expedition 4 EVA 2 *	Yury Onufrienko Daniel W. Bursch	January 25, 2002 15:19	January 25, 2002 21:18	5 hours, 59 minutes
		Installed six deflector shields for Zvezda's jet thrusters, installed a second amateur radio antenna, attached four science experiments, and retrieved and replaced a device to measure material from the thrusters.[44]
34.	Expedition 4 EVA 3	Carl E. Walz Daniel W. Bursch	February 20, 2002 11:38	February 20, 2002 17:25	5 hours, 47 minutes
		Tested the Quest airlock, and prepared it for the four spacewalks that will be performed during STS-110. The first spacewalk to be based out of Quest without a Space Shuttle at the station.[44]

35.	STS-110 EVA 1	Steven L. Smith Rex J. Walheim	April 11, 2002 14:36	April 11, 2002 22:24	7 hours, 48 minutes
		Began installing the S0 Truss onto Destiny, initial power and data connections installed between the station and S0, and installed two forward struts that permanently hold the truss in place.[45]
36.	STS-110 EVA 2	Jerry L. Ross Lee Morin	April 13, 2002 14:09	April 13, 2002 21:39	7 hours, 30 minutes
		Continued S0 Truss installation, power and data cable connections installed between S0 and the station, and installed two aft struts that permanently hold the truss in place.[45]
37.	STS-110 EVA 3	Steven L. Smith Rex J. Walheim	April 14, 2002 13:48	April 14, 2002 20:15	6 hours, 27 minutes
		Released the claw that was used in the initial attachment of the S0 Truss, installed connectors that will be used to route power to Canadarm2 when it is on the truss, released launch restraints from the Mobile Transporter, and removed a small thermal cover the Mobile Transporter's radiator.[45]
38.	STS-110 EVA 4	Jerry L. Ross Lee Morin	April 16, 2002 14:29	April 16, 2002 21:06	6 hours, 37 minutes
		Pivoted the "Airlock Spur", which will be used by spacewalkers in the future as a path from the airlock to the truss, installed handrails onto S0, partially assembled a platform, and installed two floodlights.[45][46]
39.	STS-111 EVA 1	Franklin Chang-Diaz Philippe Perrin	June 9, 2002 15:27	June 9, 2002 22:41	7 hours, 14 minutes
		Attached a Power Data Grapple Fixture to the P6 truss, removed debris panels from Endeavour's payload bay and attached them to a temporary location on PMA1, and removed thermal blankets to prepare the Mobile Base System (MBS) for installation onto the station's Mobile Transporter.[47][48]
40.	STS-111 EVA 2	Franklin Chang-Diaz Philippe Perrin	June 11, 2002 15:20	June 11, 2002 20:20	5 hours, 00 minutes
		Attached Mobile Base System to the Mobile Transporter, attached power, data and video cables from the station to the MBS.[47][49]
41.	STS-111 EVA 3	Franklin Chang-Diaz Philippe Perrin	June 13, 2002 15:16	June 13, 2002 22:33	7 hours, 17 minutes
		Replaced Canadarm2's wrist roll joint, and stowed the old joint in the shuttle's payload bay to be returned to Earth.[47][50]

42.	Expedition 5 EVA 1 *	Valery Korzun Peggy Whitson	August 16, 2002 09:25	August 16, 2002 13:48	4 hours, 23 minutes
		Installed six micro meteoroid debris panels onto Zvezda.[51]
43.	Expedition 5 EVA 2 *	Valery Korzun Sergei Treshchev	August 26, 2002 05:27	August 26, 2002 10:48	5 hours, 21 minutes
		Installed a frame on the outside of Zarya for spacewalk assembly tasks, installed new samples on a pair of Japanese Space Agency experiments housed on Zvezda, installed devices on Zvezda that would simplify the routing of tethers during future spacewalks, and installed two additional ham radio antennas on Zvezda.[51]

44.	STS-112 EVA 1	David A. Wolf Piers J. Sellers	October 10, 2002 15:21	October 10, 2002 22:22	7 hours, 01 minutes
		Released launch locks that held the S1 truss radiators in place during launch, attached power, data and fluid lines between the S1 truss and S0, deployed the station's second S-Band communications system, installed the first of two external camera systems, and released launch restraints on the truss' mobile spacewalk workstation, Crew and Equipment Translation Aid (CETA).[52][53]
45.	STS-112 EVA 2	David A. Wolf Piers J. Sellers	October 12, 2002 14:31	October 12, 2002 20:35	6 hours, 04 minutes
		Installed a second camera system, released more radiator launch locks, removed insulation covers on quick-disconnect fittings near the Z1 and P6 junction and to install Spool Positioning Devices, released starboard-side launch restraints on the CETA cart, and attached Ammonia Tank Assembly cables.[52][54]
46.	STS-112 EVA 3	David A. Wolf Piers J. Sellers	October 14, 2002 14:08	October 14, 2002 20:44	6 hours, 36 minutes
		Removed and replaced the Interface Umbilical Assembly on the station's Mobile Transporter, installed two jumpers that will allow ammonia coolant to flow between the S1 and S0 Trusses, released a drag link and stowed it, and installed Spool Positioning Devices (SPD) on ammonia lines.[52][55]
47.	STS-113 EVA 1	Michael Lopez-Alegria John Herrington	November 26, 2002 19:49	November 27, 2002 02:34	6 hours, 45 minutes
		Initial installation of the P1 truss, installed connections between the P1 and the S0 truss, released launch restraints on the CETA cart, installed Spool Positioning Devices (SPDs) onto the station, removed a drag link on P1 that served as a launch restraint, and installed a Wireless video system External Transceiver Assembly onto the Unity node.[56][57]
48.	STS-113 EVA 2	Michael Lopez-Alegria John Herrington	November 28, 2002 18:36	November 29, 2002 00:46	6 hours, 10 minutes
		Installed fluid jumpers where the S0 and the P1 are attached to each other, removed the P1's starboard keel pin, installed another wireless video system External Transceiver Assembly onto the P1, and relocated the CETA cart from the P1to the S1 truss.[56][58]
49.	STS-113 EVA 3	Michael Lopez-Alegria John Herrington	November 30, 2002 19:25	December 1, 2002 02:25	7 hours, 00 minutes
		Installed more Spool Positioning Devices, reconfigured electrical harnesses that route power through the Main Bus Switching Units, and attached Ammonia Tank Assembly lines.[56][59]

2003

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
50.	Expedition 6 EVA 1	Kenneth Bowersox Donald Pettit	January 15, 2003 12:50	January 15, 2003 19:41	6 hours, 51 minutes
		Released the remaining launch locks on the P1 radiator assembly, removed debris on a sealing ring of Unity's docking port, and tested an ammonia reservoir on the station's P6 truss.[60]
51.	Expedition 6 EVA 2	Kenneth Bowersox Donald Pettit	April 8, 2003 12:40	April 8, 2003 19:06	6 hours, 26 minutes
		Reconfigured cables on the S0 (S-Zero), S1 and P1 trusses, replaced a Power Control Module on the Mobile Transporter, installed Spool Positioning Devices on Destiny, and reinstalled a thermal cover on an S1 Radiator Beam Valve Module.[60]

2004

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
52.	Expedition 8 *	Michael Foale Alexander Kaleri	February 26, 2004 21:17	February 27, 2004 01:12	3 hours, 55 minutes
		Replaced cassette containers that held sample materials for a microgravity experiment, attached the Russian experiment Matryoshka to Zvezda, and removed a JAXA micro-meteor impact experiment. Spacewalk was cut short due a cooling system malfunction in Kaleri's spacesuit.[61]
53.	Expedition 9 EVA 1 *	Gennady Padalka Michael Fincke	June 24, 2004 21:56	June 24, 2004 22:10	0 hours, 14 minutes
		Spacewalk cut short due to a pressure problem in Fincke's prime oxygen tank in his spacesuit. Mission managers decided to reschedule the spacewalk for June 30.[62][63]
54.	Expedition 9 EVA 2 *	Gennady Padalka Michael Fincke	June 30, 2004 21:19	July 1, 2004 02:59	5 hours, 40 minutes
		Replaced a Remote Power Controller (RPC) that failed in late April, causing a loss of power in Control Moment Gyroscope No. 2 (CMG 2).[62][64]
55.	Expedition 9 EVA 3 *	Gennady Padalka Michael Fincke	August 3, 2004 06:58	August 3, 2004 11:28	4 hours, 30 minutes
		Removed laser retro reflectors from the Zvezda assembly compartment, and installed three updated laser retro reflectors and one internal videometer target in preparation for the Automated Transfer Vehicle (ATV). Installed two antennas, and removed and replaced Kromka experiment packages.[62][65]
56.	Expedition 9 EVA 4 *	Gennady Padalka Michael Fincke	September 3, 2004 16:43	September 3, 2004 22:04	5 hours, 20 minutes
		Replaced the Zarya Control Module flow control panel, installed four safety tether fairleads on Zarya's handrails, installed three communications antennas, and removed covers from the antennas.[62][66]

2005

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
57.	Expedition 10 EVA 1 *	Leroy Chiao Salizhan Sharipov	January 26, 2005 07:43	January 26, 2005 13:11	5 hours, 28 minutes
		Completed the installation of the Universal Work Platform, mounted the European commercial experiment Rokviss (Robotic Components Verification on ISS) and its antenna, installed the Russian Biorisk experiment, and relocated a Japanese exposure experiment.[67][68]
58.	Expedition 10 EVA 2 *	Leroy Chiao Salizhan Sharipov	March 28, 2005 06:25	March 28, 2005 10:55	4 hours, 30 minutes
		Installed navigational and communications equipment for the arrival of the first Automated Transfer Vehicle (ATV), and deployed an 11-pound Russian Nanosatellite.[67][69]

59.	STS-114 EVA 1 †	Soichi Noguchi Stephen K. Robinson	July 30, 2005 09:48	July 30, 2005 17:36	6 hours, 50 minutes
		Demonstrated shuttle thermal protection repair techniques and enhancements to the Station's attitude control system. installed a base and cabling for an External Stowage Platform, rerouted power to Control Moment Gyroscope-2 (CMG-2), retrieved two exposure experiments, and replaced a faulty global positioning system antenna on the station.[70]
60.	STS-114 EVA 2 †	Soichi Noguchi Stephen K. Robinson	August 1, 2005 08:42	August 1, 2005 15:56	7 hours, 14 minutes
		Removed faulty CMG-1 from the Z1 truss, installed faulty CMG-1 into Discovery's payload bay, and installed new CMG-1 onto the Z1 truss segment.[71][72]
61.	STS-114 EVA 3 †	Soichi Noguchi Stephen K. Robinson	August 3, 2005 08:48	August 3, 2005 14:49	6 hours, 1 minute
		Photographed and inspected Discovery’s heat shield, removed two protruding gap fillers from between tiles in the forward area of the orbiter’s underside, and installed amateur radio satellite PCSAT2.[73]

62.	Expedition 11 EVA 1 *	Sergei Krikalev John L. Phillips	August 18, 2005 19:02	August 19, 2005 00:00	4 hours, 58 minutes
		Retrieved one of three canisters from the Biorisk experiment, removed Micro-Particles Capturer experiment and Space Environment Exposure Device from Zvezda, retrieved Matroska experiment, installed an Automated Transfer Vehicle (ATV) docking television camera.[74][75]
63.	Expedition 12 EVA 1	William S. McArthur Valery Tokarev	November 7, 2005 15:32	November 7, 2005 20:54	5 hours, 22 minutes
		Installed and set up the P1 Truss camera, retrieved a failed Rotary Joint Motor Controller (RJMC), jettisoned a Floating Potential Probe, and removed and replaced a remote power controller module on the Mobile Transporter. First Quest airlock-based spacewalk since April 2003.[76]

2006

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
64.	Expedition 12 EVA 2 *	William S. McArthur Valery Tokarev	February 3, 2006 9:55	February 3, 2006 16:27	5 hours, 43 minutes
		Released SuitSat-1, retrieved the Biorisk experiment, photographed a sensor for a micrometeoroid experiment, relocated an adapter for a small crane, and tied off the surviving umbilical of the Mobile Transporter.[77]
65.	Expedition 13 EVA 1 *	Pavel Vinogradov Jeffrey Williams	June 1, 2006 23:48	June 2, 2006 06:19	6 hours, 31 minutes
		Repaired a vent for the station's oxygen-producing Elektron unit, retrieved a Biorisk experiment, retrieved a contamination-monitoring device from Zvezda, and replaced a malfunctioning camera on the Mobile Base System.[78]

66.	STS-121 EVA 1	Piers Sellers Michael E. Fossum	July 8, 2006 13:17	July 8, 2006 20:48	7 hours, 31 minutes
		Installed a blade blocker in the zenith Interface Umbilical Assembly (IUA) to protect the undamaged power, data and video cable, rerouted the cable to prepare for the second EVA. Tested the combination of the Space Shuttle Canadarm(SRMS) and the Orbiter Boom Sensor System (OBSS) as a platform for astronauts to make repairs to a damaged orbiter.[79]
67.	STS-121 EVA 2	Piers Sellers Michael E. Fossum	July 10, 2006 12:14	July 10, 2006 19:01	6 hours, 47 minutes
		Restored the International Space Station's Mobile Transporter rail car to full operation, and delivered a spare pump module for the station's cooling system. Sellers' SAFER pack came loose during the EVA, requiring Fossum to stop twice during the spacewalk to secure the pack with safety tethers.[80]
68.	STS-121 EVA 3	Piers Sellers Michael E. Fossum	July 12, 2006 7:11	July 12, 2006 13:31	7 hours, 11 minutes
		Used an infrared camera to shoot 20 seconds of video of selected reinforced carbon-carbon (RCC) panels on the shuttle wing's leading edge, and then moved to the payload bay to test a shuttle tile repair material known as NOAX on pre-damaged shuttle tiles that were flown in a test container.[81]

69.	Expedition 13 EVA 2	Jeffrey Williams Thomas Reiter	August 3, 2006 14:04	August 3, 2006 19:58	5 hours, 54 minutes
		Installed: The Floating Potential Measurement Unit (FPMU), two materials on Materials International Space Station Experiment (MISSE) containers, a controller for a thermal radiator rotary joint on the S1 truss, a starboard jumper and spool positioning device (SPD) on S1, a light on the truss railway handcart, and installed and replaced a malfunctioning GPS antenna. Tested an infrared camera designed to detect damage in a shuttle's reinforced carbon-carbon (RCC) thermal protection tiles. Inspection and photography of a scratch on the Quest airlock hatch.[82]

70.	STS-115 EVA 1	Joe Tanner Heidemarie Stefanyshyn-Piper	September 12, 2006 10:17	September 12, 2006 15:43	6 hours, 26 minutes
		Initial installation of the P3/P4 truss onto the space station. Connected power cables on the truss, released the launch restraints on the solar array blanket box, the Beta Gimbal Assembly, and the solar array wings. Configured the Solar Alpha Rotary Joint (SARJ), and removed two circuit interrupt devices to prepare for STS-116. Piper became the seventh American woman to conduct a spacewalk.[83]
71.	STS-115 EVA 2	Dan Burbank Steve MacLean	September 13, 2006 9:05	September 13, 2006 16:16	7 hours, 11 minutes
		Continued installation of the P3/4 truss onto the station, and activated the SARJ.[84]
72.	STS-115 EVA 3	Joe Tanner Heidemarie Stefanyshyn-Piper	September 15, 2006 10:00	September 15, 2006 16:42	6 hours, 42 minutes
		Installed a radiator onto the P3/4 truss, powered up a cooling radiator for the new solar arrays, replaced an S-Band radio antenna, and installed insulation for another antenna. Tanner took photos of the shuttle's wings using an infrared camera to test the camera's ability to detect damage.[85]

73.	Expedition 14 EVA 1 *	Mikhail Tyurin Michael Lopez-Alegria	November 22, 2006 23:17	November 23, 2006 04:55	5 hours, 38 minutes
		"Orbiting golf shot" event sponsored by a Canadian golf company through the Russian Federal Space Agency. Lopez-Alegria put the tee on the ladder outside Pirs, while Tyurin set up a camera, and then performed the golf shot. Inspected and photographed a Kurs antenna on Progress 23, relocated an Automated Transfer Vehicle (ATV) WAL antenna, installed a BTN neutron experiment, and jettisoned two thermal covers from the BTN.[86]

74.	STS-116 EVA 1	Robert Curbeam Christer Fuglesang	December 12, 2006 20:31	December 13, 2006 03:07	6 hours, 36 minutes
		Installed the ISS P5 Truss, and replaced a video camera on the S1 truss.[87]
75.	STS-116 EVA 2	Robert Curbeam Christer Fuglesang	December 14, 2006 19:41	December 15, 2006 00:41	5 hours, 00 minutes
		Reconfigured the station's electrical wiring, channels 2–3 on the P3/P4 truss to take advantage of the new solar arrays, relocated two handcarts that run along rails on the station's main truss, put a thermal cover on the station's robotic arm, and installed bags of tools for future spacewalkers.[88]
76.	STS-116 EVA 3	Robert Curbeam Sunita Williams	December 16, 2006 19:25	December 17, 2006 02:57	7 hours, 31 minutes
		Completed rewiring the station's electrical system, circuits 1 and 4, to take advantage of the P3/P4 solar array power, installed a robotic arm grapple fixture, and positioned three bundles of Russian debris shield panels outside Zvezda. Additional time was spent trying to help retract the P6 solar array panel by shaking the panel's blanket box from its base. (Williams became the 8th American woman to perform an EVA, and the 9th woman spacewalker.)[89]
77.	STS-116 EVA 4	Robert Curbeam Christer Fuglesang	December 18, 2006 19:00	December 19, 2006 01:38	6 hours, 38 minutes
		Assisted ground controllers with retracting the P6 solar array panels. Curbeam, on his seventh spacewalk, set a single-flight EVA record with four spacewalks in a single shuttle mission.[90]

2007

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
78.	Expedition 14 EVA 2	Michael Lopez-Alegria Sunita Williams	January 31, 2007 15:14	January 31, 2007 23:09	7 hours, 55 minutes
		Reconfigured one of the two cooling loops serving Destiny from the temporary to permanent system, connected a cable for the Station-to-Shuttle Power Transfer System (SSPTS), installed six cable cinches and two winch bars to secure the starboard radiator of the P6 Truss, and then installed a shroud over it. Removed one of two fluid lines from the Early Ammonia Servicer (EAS) on the P6 Truss. The EAS would be jettisoned during a later EVA.[91]
79.	Expedition 14 EVA 3	Michael Lopez-Alegria Sunita Williams	February 4, 2007 13:38	February 4, 2007 20:49	7 hours, 11 minutes
		Reconfigured the second of the two cooling loops serving Destiny from the temporary to permanent system, completed work with the Early Ammonia Servicer (EAS) on the P6 Truss, photographed the inboard end of the P6 starboard solar wing in preparation for its retraction during STS-117, removed a sunshade from a multiplexer-demultiplexer data relay device, and continued work on the SSPTS.[92]
80.	Expedition 14 EVA 4	Michael Lopez-Alegria Sunita Williams	February 8, 2007 13:26	February 8, 2007 20:06	6 hours, 40 minutes
		Removed two thermal shrouds on two Rotary Joint Motor Controllers (RJMC) on the P3 truss, removed two large shrouds from P3 Bays 18 and 20, and jettisoned the shrouds away from the station. Deployed an Unpressurized Cargo Carrier Assembly Attachment System (UCCAS) on the upper face of the P3 truss, removed two launch locks from the P5 truss, and connected four cables of the SSPTS to the Pressurized Mating Adapter (PMA-2) at the forward end of Destiny where shuttles dock.[93]
81.	Expedition 14 EVA 5 *	Mikhail Tyurin Michael Lopez-Alegria	February 22, 2007 10:27	February 22, 2007 16:45	6 hours, 18 minutes
		Retracted the antenna of the Progress cargo carrier at the aft port of the Zvezda service module, photographed a Russian satellite navigation antenna, and replaced a Russian materials experiment, inspected and photographed an antenna for the Automated Transfer Vehicle (ATV), photographed a German robotics experiment, and inspected, remated, and photographed hardware connectors.[94]

82.	Expedition 15 EVA 1 *	Fyodor Yurchikhin Oleg Kotov	May 30, 2007 19:05	May 31, 2007 00:30	5 hours, 25 minutes
		Installed Service Module Debris Protection (SMDP) panels and rerouted a Global Positioning System antenna cable.[95]
83.	Expedition 15 EVA 2 *	Fyodor Yurchikhin Oleg Kotov	June 6, 2007 14:23	June 6, 2007 20:00	5 hours, 37 minutes
		Installed a section of Ethernet cable on the Zarya module, installed additional Service Module Debris Protection (SMDP) panels on Zvezda, and deployed a Russian scientific experiment.[96]

84.	STS-117 EVA 1	James F. Reilly John D. Olivas	June 11, 2007 20:02	June 12, 2007 02:17	6 hours, 15 minutes
		Began the S3/S4 Truss installation.[97]
85.	STS-117 EVA 2	Patrick G. Forrester Steven Swanson	June 13, 2007 18:28	June 14, 2007 01:44	7 hours, 16 minutes
		Assisted in retraction of the solar panels on the P6 Truss. Completed the S3/S4 truss installation. Partial failure due to the S3/S4 SARJ motor control circuits being wired in reverse, so some launch restraints were left in place to prevent the possibility of undesired rotation.[98]
86.	STS-117 EVA 3	James F. Reilly John D. Olivas	June 15, 2007 17:24	June 16, 2007 01:22	7 hours, 58 minutes
		Repaired the Orbital Maneuvering System (OMS) pod thermal blanket, finished the P6 solar array retraction, and installed a hydrogen ventilation valve onto Destiny.[99]
87.	STS-117 EVA 4	Patrick G. Forrester Steven Swanson	June 17, 2007 16:25	June 17, 2007 22:54	6 hours, 29 minutes
		Retrieved a television camera and its support structure from an External Stowage Platform attached to the Quest airlock, and installed it on the S3 truss, verified the Drive Lock Assembly (DLA) 2 configuration, and removed the last six SARJ launch restraints. Installed a computer network cable on the Unity node, opened the hydrogen vent valve on the Destiny laboratory, and tethered two orbital debris shield panels on the station's service module.[100]

88.	Expedition 15 EVA 3	Clayton Anderson Fyodor Yurchikhin	July 23, 2007 10:25	July 23, 2007 18:06	7 hours, 41 minutes
		Replaced components for the Mobile Transporter's redundant power system, jettisoned an ammonia tank and flight support equipment, and cleaned the Common Berthing Mechanism (CBM) on the nadir port of Unity.[101][102]

89.	STS-118 EVA 1	Richard Mastracchio Dafydd Williams	August 11, 2007 16:28	August 11, 2007 23:45	6 hours, 17 minutes
		Attached the Starboard 5 (S5) segment of the station's truss, and retracted the forward heat-rejecting radiator from the station's Port 6 (P6) truss.[103]
90.	STS-118 EVA 2	Richard Mastracchio Dafydd Williams	August 13, 2007 15:32	August 13, 2007 22:00	6 hours, 28 minutes
		Removed the new Control Moment Gyroscope (CMG) from the shuttle's payload bay and installed it onto the Z1 truss. Installed the failed CMG onto an External Stowage Platform (ESP-2).[104]
91.	STS-118 EVA 3	Richard Mastracchio Clay Anderson	August 15, 2007 14:38	August 15, 2007 20:05	5 hours, 28 minutes
		Moved two Crew Equipment Translation Aid (CETA) carts from tracks on the left side of the Canadarm2 Mobile Transporter to its right side. Relocated an antenna base from the P6 truss to P1, and installed a new transponder and signal processor for an S-band communications upgrade. During the EVA, Mastracchio noted a hole in the second layer of material on the thumb of his left glove. The suit has five protective layers, and the small hole did not cause any danger to Mastracchio, but he returned to the airlock early as a precautionary measure.[105]
92.	STS-118 EVA 4	Dafydd Williams Clay Anderson	August 18, 2007 14:17	August 18, 2007 19:02	5 hours, 02 minutes
		Retrieved Materials International Space Station Experiment (MISSE) containers 3 and 4, installed the Orbiter Boom Sensor System (OBSS) Boom Stand, installed an External Wireless Instrumentation System (EWIS) antenna, and secured Z1 gimbal locks.[106]

93.	STS-120 EVA 1	Scott E. Parazynski Douglas H. Wheelock	October 26, 2007 10:02	October 26, 2007 16:16	6 hours, 14 minutes
		Installed the new Harmony module in its temporary location, retrieved the S-Band Antenna Support Assembly, and prepared for the relocation of the P6 truss by disconnecting fluid lines on the P6/Z1 truss segments.[107]
94.	STS-120 EVA 2	Scott E. Parazynski Daniel M. Tani	October 28, 2007 09:32	October 28, 2007 16:05	6 hours, 33 minutes
		Disconnected the Z1-to-P6 umbilicals, detached P6 from Z1, configured the S1 radiator, installed handrails onto Harmony, and inspected the S4 starboard Solar Alpha Rotary Joint (SARJ).[108]
95.	STS-120 EVA 3	Scott E. Parazynski Douglas H. Wheelock	October 30, 2007 08:45	October 30, 2007 15:53	7 hours, 08 minutes
		Attached P6 to P5, installed P6/P5 umbilical connections, reconfigured S1 following its redeployment, and inspected the port SARJ.[109]
96.	STS-120 EVA 4	Scott E. Parazynski Douglas H. Wheelock	November 3, 2007 10:03	November 3, 2007 17:22	7 hours, 19 minutes
		Inspection and repair of the P6 solar array.[110]

97.	Expedition 16 EVA 1	Peggy Whitson Yuri Malenchenko	November 9, 2007 09:54	November 9, 2007 16:49	6 hours, 55 minutes
		Disconnected and stored the Station-to-Shuttle Power Transfer System cables, stored the PMA-2 umbilical, and stowed a Harmony node avionics umbilical into a temporary position.[111][112]
98.	Expedition 16 EVA 2	Peggy Whitson Daniel M. Tani	November 20, 2007 10:10	November 20, 2007 17:26	7 hours, 16 minutes
		External configuration of PMA-2 and Harmony: Fluid, electrical, and data lines attached, avionics lines hooked up, heater cables attached, and relocated a fluid tray.[113]
99.	Expedition 16 EVA 3	Peggy Whitson Daniel M. Tani	November 24, 2007 09:50	November 24, 2007 16:54	7 hours, 04 minutes
		Completion of fluid, electrical, and data line hookups for PMA-2 and Harmony. Loop B Fluid Tray connected to the port side of the Destiny laboratory. Inspected and photographed the starboard Solar Alpha Rotary Joint (SARJ) to assist with troubleshooting on the ground.[114]
100.	Expedition 16 EVA 4	Peggy Whitson Daniel M. Tani	December 18, 2007 09:50	December 18, 2007 16:46	6 hours, 56 minutes
		Inspected the S4 starboard Solar Alpha Rotary Joint (SARJ), and a Beta Gimbal Assembly (BGA).[115] Records: 100th EVA in support of assembly and maintenance of the International Space Station. Whitson became the female astronaut with the most EVAs (five) and the most time spent in EVA, with a total of 32 hours, 36 minutes.[116][117][118]

2008

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
101.	Expedition 16 EVA 5	Peggy Whitson Daniel M. Tani	January 30, 2008 09:56	January 30, 2008 17:06	7 hours, 10 minutes
		Replaced the Bearing Motor Roll Ring Module on one of the station's solar wings, and inspected and photographed the starboard Solar Alpha Rotary Joint (SARJ).[119]

102.	STS-122 EVA 1	Rex J. Walheim Stanley G. Love	February 11, 2008 14:13	February 11, 2008 22:11	7 hours, 58 minutes
		Installed a grapple fixture on Columbus while it was still in the shuttle's payload bay, prepared electrical and data connections on Columbus, and replaced a large nitrogen tank used for pressurizing the station's ammonia cooling system.[120]
103.	STS-122 EVA 2	Rex J. Walheim Hans Schlegel	February 13, 2008 14:27	February 13, 2008 21:12	6 hours, 45 minutes
		Installed the P1 Truss Nitrogen (N2) tank assembly, stowed the old N2 tank assembly into the shuttle's payload bay, and completed routing for the Station-to-Shuttle Power Transfer System (SSPTS).[121]
104.	STS-122 EVA 3	Rex J. Walheim Stanley G. Love	February 15, 2008 14:27	February 15, 2008 20:32	7 hours, 25 minutes
		Installed the Solar Monitoring Observatory (SOLAR) telescope and the European Technology Exposure Facility (EuTEF) facility onto an External Stowage Platform (ESP) on Columbus. Retrieved a failed Control Moment Gyroscope (CMG), installed the failed CMG into the shuttle's payload bay, and installed keel pin cloth covers on Columbus.[122]

105.	STS-123 EVA 1	Richard M. Linnehan Garrett Reisman	March 14, 2008 01:18	March 14, 2008 08:19	7 hours, 1 minute
		Installed the Japanese Experiment Logistics Module, Pressurized Section (ELM-PS) onto its temporary location on top of Harmony, and began assembly of the Special Purpose Dexterous Manipulator (Dextre) .[123]
106.	STS-123 EVA 2	Richard M. Linnehan Michael Foreman	March 15, 2008 23:49	March 16, 2008 06:57	7 hours, 8 minutes
		Dextre assembly continued, two "arms" attached to Dextre.[124]
107.	STS-123 EVA 3	Richard M. Linnehan Robert L. Behnken	March 17, 2008 22:51	March 18, 2008 05:44	6 hours, 53 minutes
		Dextre assembly completed. Spare equipment for the station installed onto an external stowage platform (ESP) on the Quest airlock, including a yaw joint for the station's robotic arm, Canadarm2, and two spare direct current switching units.[125]
108.	STS-123 EVA 4	Michael Foreman Robert L. Behnken	March 20, 2008 22:04	March 21, 2008 04:28	6 hours, 24 minutes
		Replaced a Remote Power Control (RPC) module, and tested shuttle thermal tile repair materials and techniques. Removed a cover from the left arm of Dextre, and removed launch locks from the Harmony module. Released launch locks on Harmony’s port and nadir Common Berthing Mechanisms (CBM).[126]
109.	STS-123 EVA 5	Michael Foreman Robert L. Behnken	March 22, 2008 20:34	March 23, 2008 02:36	6 hours, 2 minutes
		Stored the shuttle Orbiter Boom Sensor System (OBSS) onto the station, installed a materials experiment on the outside of the Columbus laboratory, and inspected the Solar Alpha Rotary Joint (SARJ).[127]

110.	STS-124 EVA 1	Michael E. Fossum Ronald J. Garan	June 3, 2008 16:24	June 3, 2008 23:12	6 hours, 48 minutes
		Released straps on the shuttle's robotic arm elbow joint camera, transferred the OBSS back to the shuttle. Prepared the Japanese Experiment Module, Pressurized Module (JEM-PM), named Kibo, for installation. Replaced a trundle bearing assembly on the starboard Solar Alpha Rotary Joint, and inspected damage on the SARJ.[128][129]
111.	STS-124 EVA 2	Michael E. Fossum Ronald J. Garan	June 5, 2008 15:04	June 5, 2008 22:15	7 hours, 11 minutes
		Installed covers and external equipment to Kibo, prepared for the relocation of the Japanese Experiment Logistics Module, Pressurized Section (ELM-PS). Prepared a nitrogen tank assembly for removal, and the new tank was stowed on an External Stowage Platform to prepare for installation. Removed a television camera with failed power supply.[130]
112.	STS-124 EVA 3	Michael E. Fossum Ronald J. Garan	June 8, 2008 13:55	June 8, 2008 20:28	6 hours, 33 minutes
		Removed and replaced the starboard nitrogen tank assembly. Finished outfitting the Kibo laboratory. Reinstalled a television camera with a repaired power supply.[130]

113.	Expedition 17 EVA 1 *	Sergei Volkov Oleg Kononenko	July 10, 2008 18:48	July 11, 2008 1:06	6 hours, 18 minutes
		Inspected the Soyuz TMA-12 spacecraft, removed a pyrotechnic bolt from the Soyuz, installed a docking target for the new Russian MRM (Multipurpose Research Module) on the Service Module Transfer Compartment.[131][132]
114.	Expedition 17 EVA 2 *	Sergei Volkov Oleg Kononenko	July 15, 2008 17:08	July 15, 2008 23:02	5 hours, 54 minutes
		Installed a docking target on the Zvezda service module. Installed the Vsplesk experiment, straightened the ham radio antenna, and retrieved the Biorisk experiment.[133][134][135][136]

115.	STS-126 EVA 1	Heidemarie Stefanyshyn-Piper Stephen G. Bowen	November 18, 2008 18:09	November 19, 2008 01:01	6 hours, 52 minutes
		Transferred an empty nitrogen tank assembly from ESP3 to the shuttle's cargo bay, transferred a new flex hose rotary coupler to ESP3 for future use, removed an insulation cover on the Kibo External Facility berthing mechanism, began cleaning and lubrication of the starboard SARJ, and replacement of its 11 trundle bearing assemblies.[137][138]
116.	STS-126 EVA 2	Heidemarie Stefanyshyn-Piper Robert S. Kimbrough	November 20, 2008 17:58	November 21, 2008 00:43	6 hours, 45 minutes
		Relocated the two Crew and Equipment Translation Aid (CETA) carts from the starboard side of the Mobile Transporter to the port side, lubricated the station robotic arm's latching end effector A snare bearings, continued cleaning and lubrication of the starboard SARJ. EVA was conducted on the station's tenth anniversary.[139][140][141]
117.	STS-126 EVA 3	Heidemarie Stefanyshyn-Piper Stephen G. Bowen	November 22, 2008 18:01	November 23, 2008 00:58	6 hours, 57 minutes
		Completed cleaning and lubrication of all but one of the trundle bearing assemblies (TBA) on the starboard SARJ. The final TBA will be replaced during EVA 4.[142][143]
118.	STS-126 EVA 4	Stephen G. Bowen Robert S. Kimbrough	November 24, 2008 18:24	November 25, 2008 00:31	6 hours, 7 minutes
		Completed replacement of trundle bearing assemblies on starboard SARJ, lubricated the port SARJ, installed a video camera, re‐installed insulation covers on the Kibo External Facility berthing mechanism, performed Kibo robotic arm grounding tab maintenance, installed spacewalk handrails on Kibo, installed Global Positioning Satellite (GPS) antennae on Kibo, photographed radiators, and photographed trailing umbilical system cables.[144][145]

119.	Expedition 18 EVA 1 *	Yuri Lonchakov Michael Fincke	December 23, 2008 00:51	December 23, 2008 06:29	5 hours, 38 minutes
		Installed the electromagnetic energy measuring device, (Langmuir probe) on Pirs, removed the Russian Biorisk long-duration experiment, installed the Expose-R experiment package on Zvezda, but subsequently removed it after it failed to activate and transmit telemetry on ground command. Installed the Impulse experiment, and photographed external ISS structures as part of the "Panorama-2008" detailed test objective (DTO).[7]

2009

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
120.	Expedition 18 EVA 2 *	Yuri Lonchakov Michael Fincke	March 10, 2009 16:22	March 10, 2009 21:11	4 hours, 49 minutes
		Installed the EXPOSE-R onto the universal science platform of the Zvezda module, removed tape straps from the area of the docking target on the Pirs airlock and docking compartment, inspected and photographed the exterior of the Russian portion of the station.[146]

121.	STS-119 EVA 1	Steven R. Swanson Richard R. Arnold	March 19, 2009 17:16	March 19, 2009 23:23	6 hours, 7 minutes
		Installed the Starboard 6 (S6) truss to the S5 truss, connected S5/S6 umbilicals, released launch restraints, removed keel pins, stored and removed thermal covers, and deployed the S6 photovoltaic radiator.[147]
122.	STS-119 EVA 2	Steven R. Swanson Joseph M. Acaba	March 21, 2009 16:51	March 21, 2009 23:21	6 hours, 30 minutes
		Advanced preparation of a worksite for STS-127, partially installed an unpressurized cargo carrier attachment system on the P3 truss, installed a Global Positioning System antenna to the Kibo laboratory, and obtained infrared imagery of panels of the radiators on the P1 and S1 trusses.[148][149]
123.	STS-119 EVA 3	Joseph M. Acaba Richard R. Arnold	March 23, 2009 15:37	March 23, 2009 22:04	6 hours, 27 minutes
		Relocated a crew equipment cart, completed the deployment of a cargo carrier, and finished swapping electrical relays to the station's gyroscopes.[150]

124.	Expedition 20 EVA 1 *	Gennady Padalka Michael R. Barratt	June 5, 2009 7:52	June 5, 2009 12:46	4 hours, 54 minutes
		Prepared the Zvezda service module transfer compartment for the arrival of the Mini-Research Module 2, installed docking antenna for the module, photographed antenna for evaluation on the ground, and photographed the Strela-2 crane.[151][152]
125.	Expedition 20 EVA 2 ‡	Gennady Padalka Michael R. Barratt	June 10, 2009 6:55	June 10, 2009 7:07	0 hours, 12 minutes
		Internal spacewalk in the depressurized Zvezda transfer compartment, replaced one of the Zvezda hatches with a docking cone, in preparation for the docking of the Mini-Research Module 2, or MRM2, later this year. The MRM2 will dock automatically to the zenith port of Zvezda, and serve as an additional docking port for Russian vehicles.[153]

126.	STS-127 EVA 1	David Wolf Timothy L. Kopra	July 18, 2009 16:19	July 18, 2009 21:51	5 hours, 32 minutes
		JEF installed and P3 nadir UCCAS deployed. S3 zenith outboard PAS deploy postponed due to time constraints.
127.	STS-127 EVA 2	David Wolf Thomas Marshburn	July 20, 2009 15:27	July 20, 2009 22:20	6 hours, 53 minutes
		Transferred Orbital Replacement Units (ORUs) from the Shuttle Integrated Cargo Carrier (ICC) to the External Stowage Platform-3 (ESP-3). Transferred materials included a spare high-gain antenna, cooling-system pump module and spare parts for the Mobile Servicing System. JEF Visual Equipment (JEF-VE) installation on the forward section was postponed due to time constraints.
128.	STS-127 EVA 3	David Wolf Christopher Cassidy	July 22, 2009 14:32	July 22, 2009 20:31	5 hours, 59 minutes
		JPM preparation work, ICS-EF MLI, and P6 battery replacement (2 of 6 units). EVA was cut short due to high levels of CO₂in Cassidy's suit.
129.	STS-127 EVA 4	Christopher Cassidy Thomas Marshburn	July 24, 2009 13:54	July 24, 2009 21:06	7 hours, 12 minutes
		P6 battery replacement (final 4 of 6).
130.	STS-127 EVA 5	Christopher Cassidy Thomas Marshburn	July 27, 2009 11:33	July 27, 2009 16:27	4 hours, 54 minutes
		SPDM thermal cover adjustment, Z1 patch panel reconfiguration, JEM visual equipment (JEM-VE) installation (forward and aft), and JEM-LTA reconfigurations. S3 Nadir PAS (outboard) deployment postponed to later mission.

131.	STS-128 EVA 1	John D. Olivas Nicole P. Stott	September 1, 2009 21:49	September 2, 2009 04:24	6 hours, 35 minutes
		Prepared for the replacement of an empty ammonia tank on the station's port truss by releasing its bolts. Retrieved the MISSE-6 and EuTEF experiments mounted outside of Columbus, and stowed them in the Shuttle's payload bay for their return to Earth. (Stott became the 9th American woman to perform an EVA, and the 10th woman spacewalker.)
132.	STS-128 EVA 2	John D. Olivas Christer Fuglesang	September 3, 2009 22:13	September 4, 2009 04:51	6 hours, 39 minutes
		Removed the new ammonia tank from the shuttle's payload bay and replaced it with the used tank from the station. The new tank, weighing about 1,800 pounds (820 kg), was the most mass ever moved by spacewalking astronauts.
133.	STS-128 EVA 3	John D. Olivas Christer Fuglesang	September 5, 2009 20:39	September 6, 2009 03:40	7 hours, 1 minute
		Prepared for the arrival of Tranquility by attaching cables between the starboard truss and Unity, the area where Tranquility will be installed. The spacewalkers also replaced a communications sensor device, installed two new GPS antennas, deployed the PAS on the S3 truss, and replaced a circuit breaker.

134.	STS-129 EVA 1	Michael Foreman Robert Satcher	November 19, 2009 14:24	November 19, 2009 21:01	6 hours, 37 minutes
		Installed a spare antenna on the station's truss and a bracket for ammonia lines on Unity. Lubricated the grapple mechanism on the Payload Orbital Replacement Unit Attachment Device on the Mobile Base System and lubricated the snares of the hand of the station's Japanese robotic arm. Deployed the S3 outboard Payload Attach System.
135.	STS-129 EVA 2	Michael Foreman Randolph Bresnik	November 21, 2009 14:31	November 21, 2009 20:39	6 hours, 8 minutes
		Installed the GATOR (Grappling Adaptor to On-Orbit Railing) bracket to Columbus and an additional ham radio antenna. Installed on the truss an antenna for wireless helmet camera video. Relocated the Floating Potential Measurement Unit that records electrical potential around the station as it orbits the Earth. Deployed two brackets to attach cargo on the truss.
136.	STS-129 EVA 3	Robert Satcher Randolph Bresnik	November 23, 2009 13:24	November 23, 2009 19:06	5 hours, 42 minutes
		Installed a new High Pressure Gas Tank (HPGT) on the Quest airlock. Installed MISSE-7A and 7B on ELC-2. Strapped two micrometeoroid and orbital debris (MMOD) shields to External Stowage Platform #2. Relocated foot restraint, released a bolt on Ammonia Tank Assembly, installed insulated covers on cameras on mobile servicing system and Canadarm 2's end effector. Worked heater cables on docking adapter.

2010

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
137.	Expedition 22 EVA 1 *	Oleg Kotov Maksim Surayev	January 14, 2010 10:05	January 14, 2010 15:49	5 hours, 44 minutes
		Prepared the Poisk module for future dockings.[154]

138.	STS-130 EVA 1	Robert L. Behnken Nicholas Patrick	February 12, 2010 02:17	February 12, 2010 08:49	6 hours, 32 minutes
		Removed a protective cover on a port on the Unity node where Tranquility was berthed halfway through the spacewalk. The pair then transferred a spare parts platform for the Special Purpose Dexterous Manipulator from the shuttle to the station. Behnken and Patrick will then made several connections on the newly installed Tranquility node to begin its activation.
139.	STS-130 EVA 2	Robert L. Behnken Nicholas Patrick	February 14, 2010 02:20	February 14, 2010 08:14	5 hours, 54 minutes
		Installed ammonia plumbing and connectors between Unity, Destiny and Tranquility and covered them with thermal insulation. Prepare the nadir port on Tranquility for the relocation of the Cupola, and installed handrails on the exterior of Tranquility.
140.	STS-130 EVA 3	Robert L. Behnken Nicholas Patrick	February 17, 2010 02:15	February 17, 2010 08:03	5 hours, 48 minutes
		Installed additional ammonia plumbing between Unity and Tranquility, removed insulation and launch locks from the Cupola, installed additional handrails on the exterior of Tranquility and performed get-ahead tasks to support the installation of a PDGF on the exterior of Zarya with cable installation on Unity and the S0 truss.

141.	STS-131 EVA 1	Richard Mastracchio Clayton Anderson	April 9, 2010 05:31	April 9, 2010 11:58	6 hours, 27 minutes
		Relocated new ammonia tank from the Shuttle's payload bay to a temporary stowage location and disconnected the fluid lines to the old ammonia tank on the S1 truss. Retrieved a Japanese seed experiment from the exterior of the Kibo laboratory for return to earth and replaced a failed gyroscope on the S0 truss. Performed get-ahead tasks including the opening of a window flap on the zenith CBM of Harmony, and removed launch restraint bolts from a Flex Hose Rotary Coupler (FHRC) on the P1 truss.
142.	STS-131 EVA 2	Richard Mastracchio Clayton Anderson	April 11, 2010 05:20	April 11, 2010 12:56	7 hours, 26 minutes
		The old ammonia tank was removed from the S1 truss and was replaced with the new tank. The electrical connections to the tank were made, but the fluid lines were deferred to the mission's third EVA due to time constraints since the installation was prolonged by a problem with the bolts that hold the tank to the truss. The old tank was relocated to a temporary stowage location on the station and a foot restraint was relocated in preparation for a future shuttle mission's spacewalk.
143.	STS-131 EVA 3	Richard Mastracchio Clayton Anderson	April 13, 2010 06:14	April 13, 2010 12:36	6 hours, 24 minutes
		The fluid lines were connected to the new ammonia tank and the old tank was moved to the shuttle's payload bay for return to Earth. Micro-meteoroid debris shields from the Quest airlock which were no longer necessary were brought inside the airlock for return to Earth inside the Leonardo MPLM. The Z1 truss was prepared for the installation of a spare antenna on the next shuttle mission, and a foot restraint was relocated in preparation for a future spacewalk. The retrieval of an external carrier plate on Columbus was deferred to another shuttle mission due to time constraints after problems were encountered with attaching the old ammonia tank to a carrier in the payload bay, and several other tasks were deferred to later EVAs due to the replanning from the problems with the mission's second EVA.

144.	STS-132 EVA 1	Garrett Reisman Stephen G. Bowen	May 17, 2010 11:54	May 17, 2010 19:19	7 hours, 25 minutes
		Installed a spare space-to-ground Ku-band antenna on the Z1 truss; installed new tool platform on Dextre, and broke torque on bolts holding replacement batteries to the ICC-VLD cargo carrier.
145.	STS-132 EVA 2	Stephen G. Bowen Michael T. Good	May 19, 2010 10:38	May 19, 2010 17:47	7 hours, 9 minutes
		Repaired Atlantis' Orbiter Boom Sensor System (OBSS); P6 battery replacement (4 of 6 units); and removed gimbal locks from the Ku-band antenna installed on the first EVA of the mission.
146.	STS-132 EVA 3	Michael T. Good Garrett Reisman	May 21, 2010 10:27	May 21, 2010 17:13	6 hours, 46 minutes
		P6 battery replacement (final 2 of 6 units); installed ammonia "jumpers" at the P4/P5 interface; retrieved a spare PDGF from Atlantis' payload bay and stowed it inside the Quest airlock. The spacewalkers also replenished supplies of EVA tools in toolboxes on the exterior of the station.

147.	Expedition 24 EVA 1 *	Fyodor Yurchikhin Mikhail Korniyenko	July 27, 2010 04:11	July 27, 2010 10:53	6 hours, 42 minutes
		Replaced ATV docking camera on Zvezda's rear docking port, added cables from the Zvezda and Zarya modules to connect Rassvet to the Russian command and data handling computer system, added cables between Rassvet and Zarya to allow use of the KURS automated docking system on Rassvet.[155]
148.	Expedition 24 EVA 2	Douglas H. Wheelock Tracy Caldwell Dyson	August 7, 2010 11:19	August 7, 2010 19:22	8 hours, 3 minutes
		Attempted to replace a failed ammonia pump module located on the S1 truss. Due to an ammonia leak in the final line that needed to be disconnected from the failed pump module, the planned tasks were only partially completed, and the spacewalkers needed extra time to perform a "bake out" to ensure no ammonia entered the station following the EVA. This was the longest International Space Station-based spacewalk, and the sixth longest spacewalk in history.[156][157]
149.	Expedition 24 EVA 3	Douglas H. Wheelock Tracy Caldwell Dyson	August 11, 2010 12:27	August 11, 2010 19:53	7 hours, 26 minutes
		Completed removal of failed pump module from the S1 truss and began installation preparations on the replacement pump.[158]
150.	Expedition 24 EVA 4	Douglas H. Wheelock Tracy Caldwell Dyson	August 16, 2010 10:20	August 16, 2010 17:40	7 hours, 20 minutes
		Completion of the third contingency spacewalk to install a spare ammonia pump module on the S1 Truss.[159][160]

151.	Expedition 25 EVA 1 *	Fyodor Yurchikhin Oleg Skripochka	November 15, 2010 14:55	November 15, 2010 21:22	6 hours, 27 minutes
		Installed: portable multipurpose workstation in Zvezda Plane IV; struts between Poisk and Zvezda and Zarya modules; hand-rail on Pirs docking module; SKK #1-M2 cassette on Poisk module. Removed: Plasma Pulse Injector Science hardware and Expose-R scientific experiment from portable multipurpose workstation in Zvezda Plane II; Kontur science hardware (ROKVISS); TV camera from Rassvet module. Performed Test experiment to check for microorganisms or contamination underneath insulation on the Russian ISS segment.[161] Cosmonauts failed to relocate TV camera due to interference from insulation at installation location.[162][163]

2011

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
152.	Expedition 26 EVA 1 *	Dmitri Kondratyev Oleg Skripochka	January 21, 2011 14:29	January 21, 2011 19:52	5 hours, 23 minutes
		Installed an experimental communication antenna on Zvezda 's nadir side, removed and stowed a failed plasma pulse generator experiment apparatus and a material exposure experiment from Zvezda, and installed a docking TV camera on the Rassvet module.[164][165]
153.	Expedition 26 EVA 2 *	Dmitri Kondratyev Oleg Skripochka	February 16, 2011 13:30	February 16, 2011 18:21	4 hours, 51 minutes
		Installed two experiments for Earth seismic and lightning observations on the Zvezda module, removed two material exposure experiment panels from the exterior of the Zarya module, and jettisoned a foot restraint overboard.[166][167]

154.	STS-133 EVA 1	Stephen Bowen Alvin Drew	February 28, 2011 15:46	February 28, 2011 22:20	6 hours, 34 minutes
		Drew and Bowen installed a power extension cable between the Unity and Tranquility nodes to provide a contingency power source should it be required. The spacewalkers then moved the failed ammonia pump module that was replaced in August from its temporary location to the External Stowage Platform 2 adjacent to the Quest airlock. Drew and Bowen then installed a wedge under a camera on the S3 truss to provide clearance from the newly installed ELC-4. They next replaced a guide for the rail cart system used for moving the station robotic arm along the truss. The guides had been removed when astronauts were performing work on the station's starboard Solar Alpha Rotary Joint (SARJ), which rotates the solar arrays to track the sun. The final task was to "fill" a special bottle with the vacuum of space for a Japanese education payload. The bottle will be part of a public museum exhibit.
155.	STS-133 EVA 2	Stephen Bowen Alvin Drew	March 2, 2011 15:42	March 2, 2011 21:56	6 hours, 14 minutes
		Drew removed thermal insulation from a platform, while Bowen swapped out an attachment bracket on the Columbus module. Bowen then installed a camera assembly on the Dextre robot and removed insulation from Dextre's electronics platform. Drew installed a light on a cargo cart and repaired some dislodged thermal insulation from a valve on the truss.

156.	STS-134 EVA 1	Andrew Feustel Gregory Chamitoff	May 20, 2011 07:10	May 20, 2011 13:29	6 hours, 19 minutes
		Feustel and Chamitoff retrieved the two MISSE 7 experiments and installed a new package of MISSE 8 experiments on ELC-2, which was already on the station. They installed jumpers between segments on the left-side truss, or backbone of the station, for ammonia refills; vented nitrogen from an ammonia servicer; they began to install an external wireless communication antenna on the Destiny laboratory that will provide wireless communication to the Express Logistics Carriers mounted on the station's truss, but was cut short due to a bad CO₂ sensor in Chamitoff's suit.
157.	STS-134 EVA 2	Andrew Feustel Michael Fincke	May 22, 2011 6:05	May 22, 2011 14:12	8 hours, 7 minutes
		Feustel and Fincke refilled the Port 6 (P5) radiators with ammonia. They completed venting the early ammonia system, lubricated the port solar alpha rotary joint and parts of Dextre, a two-armed space station robot capable of handling delicate assembly tasks currently performed by spacewalkers. Fincke also installed grapple bars on the port radiators.
158.	STS-134 EVA 3	Andrew Feustel Michael Fincke	May 25, 2011 05:43	May 25, 2011 12:37	6 hours, 54 minutes
		Feustel and Fincke installed a grapple fixture (a handle for the station's Canadarm2 to grab on to) on the Zarya module, to support robotic operations based from the Russian segment. They also installed additional cables to provide backup power to the Russian portion of the space station. The pair finished installing the wireless video system that was left unfinished during EVA 1.
159.	STS-134 EVA 4	Michael Fincke Gregory Chamitoff	May 27, 2011 04:15	May 27, 2011 11:39	7 hours, 24 minutes
		Fincke and Chamitoff stowed the shuttle's 50-foot Orbiter Boom Sensor System (OBSS) on the right-side truss on a permanent stowage fixture. The pair then retrieved a grapple from the station's left-side truss and used it as a replacement for the grapple currently on the boom. They then released restraints from one of the arms spare arms for Dextre and replaced thermal insulation on one of the spare gas tanks for the Quest airlock. The arrival of the PMM module marked the completion of the US Orbital Segment.[168] This was the final EVA from the Space Shuttle before its retirement.

160.	Expedition 28 EVA 1	Ronald J. Garan, Jr. Michael E. Fossum	July 12, 2011 13:22	July 12, 2011 19:53	6 hours, 31 minutes
		This spacewalk was kind of special in that it was the last spacewalk performed while a space shuttle was docked to the station. However, other than the previous spacewalks during docked operations, this one was performed by the station crew and not by the space shuttle crew. The need for this spacewalk arose since a failed pump module on the station should be returned for inspection to the ground on the space shuttle. This having been the main objective done during this EVA the spacewalkers also installed a Robotic Refueling Mission experiment and fully deployed the MISSE 8 experiment (which was only half deployed during a previous spacewalk).[169][170]
161.	Expedition 28 EVA 2 *	Sergei Volkov Aleksandr Samokutyayev	August 3, 2011 14:50	August 3, 2011 21:13	6 hours, 23 minutes
		The spacewalkers installed laser communications equipment which eventually will test transmissions of up to 100 Mbit/s of Russian science data with the ground on the Zvezda service module. Radioskaf-V a small satellite for a student experiment was deployed and an antenna which was used for the docking of Poisk was removed and brought back into the station. As part of the research work on the station the BIORISK experiment was installed on a handrail outside Pirs. Last but not least photographs were taken including some of an antenna with signs of degraded performance to support engineers on the ground to trouble-shoot the cause of the degradation. Due to time constrains the task to relocate the STEAL-1 cargo boom was canceled for this EVA.[171]

2012

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
162.	Expedition 30 EVA 1 *	Oleg Kononenko Anton Shkaplerov	February 16, 2012 14:31	February 16, 2012 20:46	6 hours, 15 minutes
		In preparation for the upcoming undocking of the Pirs docking compartment the Strela 1 Equipment Crane was relocated from that module to the Mini-Research Module 2. In addition an experiment module which exposed materials to the space environment was retrieved while another experiment, the Vynoslivost Sample Experiment was installed on handrails on MRM2. Out of two hardware units for the TEST experiment, just one unit was installed before time for the EVA ran out. The scheduled task to install five shields on Zvezda to shield it from micrometeoroid debris was also cancelled and is rescheduled to be done during the next EVA.[172][173]

163.	Expedition 32 EVA 1 *	Gennady Padalka Yuri Malenchenko	August 20, 2012 15:37	August 20, 2012 21:28	5 hours, 51 minutes
		During this spacewalk the Strela 2 telescoping boom was relocated from the Pirs docking compartment to the Zarya control module in preparation for the upcoming undocking of Pirs which paves the way for the arrival of the new Russian Multipurpose Laboratory Module in 2013. The second task was to install micrometeoroid debris shields on the Zvezda service module. Additionally a small satellite was deployed which is used by ground controllers to perform tracking tests used to help tracking actual space debris. Last but not least the spacewalkers added support struts to an airlock ladder and retrieved a Biorisk sample container. Retrieving another example container of a material exposure experiment failed due to a stuck hinge that prevented it from folding close. [174] [175] [176]
164.	Expedition 32 EVA 2	Sunita Williams Akihiko Hoshide	August 30, 2012 12:16	August 30, 2012 20:33	8 hours, 17 minutes
		The main objective for this EVA is to replace the Main Bus Switching Unit (MBSU) 1 which showed preliminary indications of failure in October 2011 with a replacement unit. Furthermore, in preparation of the integration of the new Russian module (the Multipurpose Laboratory Module), some cables will be routed. If time permits, debris and thermal covers will be installed on PMA-2. [177]
165.	Expedition 32 EVA 3	Sunita Williams Akihiko Hoshide	September 5, 2012 11:06	September 5, 2012 17:34	6 hours, 28 minutes
		Installed the new MBSU unit, working around difficulty with one of the bolts; replaced one of the cameras mounted on the CanadArm. During this spacewalk, Sunita Williams broke Peggy Whitson's record for most total time spacewalking by a woman.

166.	Expedition 33 EVA 1	Sunita Williams Akihiko Hoshide	November 1, 2012 12:29	November 1, 2012 19:07	6 hours, 38 minutes
		Reconfigured and isolated a leak in the ammonia cooling system of power channel 2B on the P6 truss by-passing a leaking cooling loop and re-connecting jumpers to an unused loop of the Early External Thermal Control System (EETCS), and by re-deploying the trailing Thermal Control Radiator of the system.

2013

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
167.	Expedition 35 EVA 1 *	Pavel Vinogradov Roman Romanenko	April 19, 2013 14:03	April 19, 2013 20:41	6 hours, 38 minutes
		Installed the Obstanovka plasma waves and ionosphere experiment to the exterior of the Zvezda service module. Also replaced a faulty retro-reflector device used as navigational aids for the Automatic Transfer Vehicle and retrieved the Biorisk microbe exposure experiment. An attempt to retrieve the Vinoslivost materials sample experiment failed when it was accidentally dropped while being taken back to the Pirs module airlock.[178][179]
168.	Expedition 35 EVA 2	Thomas Marshburn Christopher Cassidy	May 11, 2013 12:44	May 11, 2013 18:14	5 hours, 30 minutes
		Known as US EVA 21. Inspected and replaced a Pump Flow Control Subassembly on the station's P6 truss which was leaking ammonia coolant. This was the same leaking thermal system from US EVA 20, performed on November 1, 2012.[180][181]

169.	Expedition 36 EVA 1 *	Fyodor Yurchikhin Alexander Misurkin	June 24, 2013 13:32	June 24, 2013 20:06	6 hours, 34 minutes
		Replaced a fluid flow regulator on the Zarya module, testing of the Kurs docking system on the station ahead of the arrival of a new Russian module, installing the "Indicator" experiment, installing gap spanners on to the outside of the station and photographing the multilayer insulation (MLI) protecting the Russian segment from micrometeoroids and taking samples from the exterior surface of the pressure hull underneath the MLI to identify signs of pressure hull material microscopic deterioration.[182][183]
170.	Expedition 36 EVA 2	Christopher Cassidy Luca Parmitano	July 9, 2013 12:02	July 9, 2013 18:09	6 hours, 7 minutes
		Known as US EVA 22. Replaced a failed Space-to-Ground Transmitter Receiver Controller and the Mobile Base Camera Light Pan-Tilt Assembly, retrieved the MISSE-8 and ORMatE-III experiments, photographed the AMS-02, moved two Radiator Grapple Bars to either sides of the truss, routed power cables to support the addition of the new Russian MLM and installed a multi-layer insulation cover to protect the docking interface of PMA-2.[184][185]
171.	Expedition 36 EVA 3	Christopher Cassidy Luca Parmitano	July 16, 2013 11:57	July 16, 2013 13:29	1 hour, 32 minutes
		Known as US EVA 23. Installed a Y-bypass jumper on power lines on the Z1 truss, routing 1553 data cables for a grapple fixture and Ethernet cables for a future Russian station module. The spacewalk was then cut short after Parmitano reported excess water leaking inside his helmet.[186][187][188]
172.	Expedition 36 EVA 4 *	Fyodor Yurchikhin Alexander Misurkin	August 16, 2013 14:36	August 16, 2013 22:05	7 hours, 29 minutes
		The cosmonauts successfully unreeled and routed two long power lines and an ethernet cable along the outside of the Zarya storage module that will be connected to the new Nauka laboratory after its arrival next year. Misurkin also mounted a space exposure experiment pallet on a handrail outside the upper Poisk module. The cosmonauts extended a telescoping space crane early on to help move large cable reels from Pirs to Zarya It was the 172nd EVA and with the seven-hour 29-minute duration set a new Russian spacewalk record, eclipsing the old mark of seven hours and 16 minutes set by two cosmonauts outside the Mir space station in July 1990.[189][190][191]
173.	Expedition 36 EVA 5 *	Fyodor Yurchikhin Alexander Misurkin	August 22, 2013 11:34	August 22, 2013 17:32	5 hours, 58 minutes
		Removed a laser communication and installed an EVA work station and camera pointing platform outside the Zvezda service module, inspection and tightening of various antenna covers on Zvezda, and installed new spacewalk aids.[192][193]

174.	Expedition 37 EVA 1 *	Oleg Kotov Sergei Ryazanski	November 9, 2013 14:34	November 9, 2013 20:24	5 hours, 50 minutes
		Took the Olympic torch for the 2014 Winter Olympic Games to the outside of ISS. They also continued work on an extravehicular activity workstation and biaxial pointing platform by removing launch brackets and bolts, as well as retrieving an experimental package. The planned installation of a foot restraint on the mounting seat of the workstation was deferred to a future spacewalk after the spacewalkers noticed some issues with its alignment.[194][195]

175.	Expedition 38 EVA 1	Richard Mastracchio Michael S. Hopkins	December 21, 2013 12:01	December 21, 2013 17:29	5 hours, 28 minutes
		The first of multiple spacewalks needed after cooling line temperatures decreased due to a stuck internal valve, which led to the deterioration of an ammonia pump module. The astronauts took the module out of the Active Thermal Control System's Loop A. They also connected two ammonia fluid lines to a jumper box after disconnecting them from the pump module. Two other lines were disconnected and stowed inside a thermal blanket.[196]
176.	Expedition 38 EVA 2	Michael S. Hopkins Richard Mastracchio	December 24, 2013 11:53	December 24, 2013 19:23	7 hours, 30 minutes
		Retrieved spare ammonia pump module, installed it on starboard truss, and connected it to Loop A of Active Thermal Control System.[197][198]
177.	Expedition 38 EVA 3 *	Oleg Kotov Sergei Ryazanski	December 27, 2013 13:00	December 27, 2013 21:07	8 hours, 7 minutes
		Attempted installation of 2 HD cameras for commercial Earth observation on the outside of the Zvezda module, cancelled after one of the cameras failed to provide data to the ground during testing. Also installed and jettisoned experimental equipment outside the Russian segment. Longest Russian EVA in history.[199][200]

2014

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
178.	Expedition 38 EVA 4 *	Oleg Kotov Sergei Ryazanski	January 27, 2014 14:00	January 27, 2014 20:08	6 hours 8 minutes
		Installed High Resolution Camera (HRC) on SM Plane IV; installed Medium Resolution Camera (MRC) on SM Plane IV; photographed electrical connectors on ФП11 and ФП19 connector patch panels of SM; removed Worksite Interfaces (WIF) adaptor from SSRMS LEE B; retrieved СКК #2-СО cassette container from DC-1.[201]

179.	Expedition 39 EVA 1	Richard Mastracchio Steven Swanson	April 23, 2014 13:56	April 23, 2014 15:32	1 hours 36 minutes
		Replaced failed Multiplexer/Demultiplexer (MDM) unit on S0 truss; also removed two lanyards from Secondary Power Distribution Assembly (SPDA) doors.[202][203]

180.	Expedition 40 EVA 1 *	Alexander Skvortsov Oleg Artemyev	June 19, 2014 14:10	June 19, 2014 21:33	7 hours 23 minutes
		Installed an automated phased antenna array used for the Russian command and telemetry system, relocated a part of the Obstanovka experiment that monitors charged particles and plasma in Low Earth Orbit, verifying the correct installation of the universal work platform (URM-D), taking samples from one of Zvezda's windows, and jettisoning an experiment frame.[204][205]
181.	Expedition 40 EVA 2 *	Alexander Skvortsov Oleg Artemyev	August 18, 2014 14:02	August 18, 2014 19:13	5 hours 11 minutes
		Released Chasqui-1 cubesat into space; installed experiment packages (EXPOSE-R2 biological experiment, Plume Impingement and Deposit Monitoring unit), retrieved experiments (Vinoslivost materials exposure panel, Biorisk biological experiment), replaced cassette on SKK experiment and attached a handrail on an antenna.[206][207]

182.	Expedition 41 EVA 1	Reid Wiseman Alexander Gerst	October 7, 2014 12:30	October 7, 2014 18:43	6 hours 13 minutes
		Relocated failed cooling pump to External Stowage Platform-2 (ESP-2), Stowed adjustable grabble bars on ESP-2, replaced light on External Television Camera Group (ETVCG) and installation of a Mobile Transporter Relay Assembly (MTRA)[208][209]
183.	Expedition 41 EVA 2	Reid Wiseman Barry E. Wilmore	October 15, 2014 12:16	October 15, 2014 18:50	6 hours 34 minutes
		Replaced failed sequential shunt unit (SSU) for 3A power system, relocated articulating portable foot restraint/tool stanchion (APFR/TS), removed camera port (CP) 7, relocated wireless video system external transceiver assembly (WETA) from CP8 to CP11, installed external TV camera group at CP8.[210]
184.	Expedition 41 EVA 3 *	Maksim Surayev Aleksandr Samokutyayev	October 22, 2014 13:28	October 22, 2014 17:06	3 hours 38 minutes
		Removed and jettisoned Radiometriya experiment from Zvezda Plane II, removed EXPOSE-R experiment protective cover, took surface samples from Pirs extravehicular hatch 2 window (TEST experiment), removed and jettisoned two KURS attennas 2ACф1-1 and 2ACф1-2 from Poisk, photographed exterior of ISS Russian segment.[211][212]

2015

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
185.	Expedition 42 EVA 1	Barry E. Wilmore Terry W. Virts	February 21, 2015 12:45	February 21, 2015 19:26	6 hours, 41 minutes
		Rigged and routed power and data cables at the forward end of the Harmony module as part of preparations for the installation of the International Docking Adapter at PMA-2.[213][214]
186.	Expedition 42 EVA 2	Barry E. Wilmore Terry W. Virts	February 25, 2015 11:51	February 25, 2015 18:34	6 hours, 43 minutes
		Completed power and data cable routing at the forward end of the Harmony module. Removed launch locks from forward and aft berthing ports of Tranquility to prepare for relocation of the Permanent Multipurpose Module and the installation of the Bigelow Expandable Activity Module. Lubricated end effector of Canadarm2.[215][216]
187.	Expedition 42 EVA 3	Terry W. Virts Barry E. Wilmore	March 1, 2015 11:52	March 1, 2015 17:30	5 hours, 38 minutes
		Finished cable routing, antenna and retro-reflector installation on both sides of the ISS truss and on other modules in preparation for the installation of the International Docking Adapter at PMA-2 and 3.[217][218]

188.	Expedition 44 EVA 1 *	Gennady Padalka Mikhail Korniyenko	August 10, 2015 14:20	August 10, 2015 19:51	5 hours 31 minutes
		Installed gap spanners on the hull of the station for facilitating movement of crew members on future spacewalks, cleaned windows of the Zvezda Service Module, install fasteners on communications antennas, replaced an aging docking antenna, photographed various locations and hardware on Zvezda and nearby modules, and retrieved a space environment experiment.[219][220]

189.	Expedition 45 EVA 1	Scott Kelly Kjell N. Lindgren	October 28, 2015 12:03	October 28, 2015 19:19	7 hours 16 minutes
		Applied a thermal cover on the Alpha Magnetic Spectrometer; lubricating one of the latching ends of the Canadarm2 robotic arm; and began work to connect power and data system cables for the future installation of docking adapters for future US crew vehicles.[221][222]
190.	Expedition 45 EVA 2	Kjell N. Lindgren Scott Kelly	November 6, 2015 11:22	November 6, 2015 19:10	7 hours 48 minutes
		Worked to restore a portion of the ISS's cooling system to its primary configuration, returning ammonia coolant levels to normal in the primary and backup radiator arrays.[223][224]

191.	Expedition 46 EVA 1	Scott Kelly Timothy Kopra	December 21, 2015 13:45	December 21, 2015 16:01	3 hours 16 minutes
		Kelly and Kopra performed an EVA to troubleshoot the starboard Crew Equipment Translation Aid (CETA) cart and Mobile Transporter (MT). The starboard CETA cart is linked to the side of the Mobile Transporter (MT), and its brake was engaged preventing MT movement. Kelly released the brake and the MT was successfully commanded by Robotic Ground Controllers to translate to Worksite 4 where it was latched and mated. In addition to the CETA cart task, Kelly and Kopra performed several get ahead activities. Kelly routed Pressurized Mating Adapter (PMA) 3 power and International Docking Adapter (IDA) ethernet cables along Node 1. Kopra opened the Secondary Power Distribution Assembly (SPDA) doors for future Robotic operations, routed an ethernet cable for the Multipurpose Laboratory Module (MLM), and retrieved a Scoop/D-Handle tool from a toolbox on the truss.[225]

2016

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
192.	Expedition 46 EVA 2	Timothy Kopra Tim Peake	January 15, 2016 12:48	January 15, 2016 17:31	4 hours 43 minutes
		Replaced 1B Shunt unit, continued installation of IDA cables. The EVA was terminated early when Kopra reported the formation of a small bubble of water inside his helmet. The main objective, replacing the SSU, was completed successfully.[226]
193.	Expedition 46 EVA 3 *	Yuri Malenchenko Sergey Volkov	February 3, 2016 12:55	February 3, 2016 17:40	4 hours 45 minutes
		Conducted the ‘Test’ experiment by gathering samples on different locations (the hatch of Pirs, Window #8 on Zvezda) and taking engineering photos of various areas on the aft segment of ISS, jettisoned a bundle containing a flash drive holding video messages from last year's 70th anniversary celebration of Victory Day, retrieved the EXPOSE-R astrobiology experiment, collected the CKK 2-M2 experiment cassette and replaced it with the CKK 3-M3 cassette, configured a plume-sensing payload, installed the Vinoslivost payload (another space exposure experiment) installed gap spanners on the Russian segment, and retrieved the "Restavratsiya" (Restoration) Experiment Hardware, gathering experience in the in-space application of adhesive surface coatings for future operational use in space-based repairs of external equipment.[227]

194.	Expedition 48 EVA 1	Jeff Williams Kate Rubins	August 19, 2016 13:04	August 19, 2016 19:02	5 hours 58 minutes
		Installation of the International Docking Adapter (IDA) and installation of cables for future IDA[228]
195.	Expedition 48 EVA 2	Jeff Williams Kate Rubins	September 1, 2016 11:53	September 1, 2016 17:41	6 hours 48 minutes
		The main objective of this EVA was to retract a thermal radiator on the port truss. This radiator was supposed to be retracted during Expedition 45 EVA 2 (November 6, 2015) but was not completed. The radiator had been deployed on Expedition 33 EVA 1 (November 1, 2012) in an attempt to isolate a coolant leak. Additional completed tasks included installing HD Video Cameras on the port/outboard side of the station (one zenith, one nadir), applying additional torque to SARJ bolts, photographing the inside of the SARJ, tying back a protective blanket covering hardware which will be robotically manipulated later, and tying back Crew and Equipment Translation Aid (CETA) Cart brake handles to keep them out of the SARJ rotation envelope.[229][230][231]

2017

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
196.	Expedition 50 EVA 1	Peggy Whitson Shane Kimbrough	January 6, 2017 11:23	January 6, 2017 17:55	6 hours 32 minutes
		Installed adapter plates and cables for new batteries on 3A power channel, pictures of AMS, removal of camera and routing of Ethernet cable.[232]
197.	Expedition 50 EVA 2	Shane Kimbrough Thomas Pesquet	January 13, 2017 11:22	January 13, 2017 17:20	5 hours 58 minutes
		Primary objectives: Retrieve Adapter Plate E and F from the Express Pallet (EP), Install Adapter Plate F in Slot 6, Relocate Battery 4 to Adapter Plate F, Install Adapter Plate E in Slot 4, Retrieve and Install Adapter Plate D in Slot 2, Fasten H1 Bolts on Li-Ion Batteries in Slots 1 and 5 Get-ahead tasks: Node 3 Shields Bundle #3 Temp Stow, Mobile Transporter Relay Assembly (MTRA) Camera Light Pan and Tilt Assembly (CLPA) Swap, Latching End Effector (LEE) A Worksite Interface Fixture (WIF) Adapter R&R, S0 aft to Z1 forward (Rat's Nest) Photo Mapping, Secure Solar Array Blanket Boxes (SABB) Restraints, Relocate Shields Bundle #2 to Node 3[233]
198.	Expedition 50 EVA 3	Shane Kimbrough Thomas Pesquet	March 24, 2017 11:24	March 24, 2017 17:58	6 hours 34 minutes
		Prepare PMA for move, install new Epic MDM, Camera Work, Lubricated Canadarm2 end effector and inspected a radiator value.[234]
199.	Expedition 50 EVA 4	Shane Kimbrough Peggy Whitson	March 30, 2017 12:29	March 30, 2017 19:33	7 hours 4 minutes
		Remove EXT-1 MDM & install EPIC MDM, Node 3 axial shields install including replacing a lost shield with the PMA-3 cover, PMA-3 cummerbunds install, PMA-3 cover removal, PMA-3 connections, close Node 3 port CDC, Inspection & cleaning of the Earth-facing berthing port of the Harmony module

200.	Expedition 51 EVA 1	Peggy Whitson Jack D. Fischer	May 12, 2017 13:08	May 12, 2017 17:21	4 hours 13 minutes
		Replaced ExPRESS Carrier Avionics (ExPCA), Installed Pressurized Mating Adapter-3 (PMA-3) Forward Shield, Installed Alpha Magnetic Spectrometer (AMS) MIL-1553 Terminator, Secured Multilayer Insulation (MLI) on Japanese Manipulator System, Relocated a Portable Foot Restrain to PMA-3[235]
201.	Expedition 51 EVA 2	Peggy Whitson Jack D. Fischer	May 23, 2017 12:20	May 23, 2017 15:06	2 hours 46 minutes
		Replace failed Multiplexer-Demultiplexer (MDM), Installed two Wireless Communication Anntenna's[236]

202.	Expedition 52 EVA 1 *	Fyodor Yurchikhin Sergei Ryazanski	August 17, 2017 14:36	August 17, 2017 22:10	7 hours 34 minutes
		Retrieved the "Restavratsiya" (Restoration) Experiment Hardware, Launched 5 Nano Satellites one of them being a Sputnik satellite named "Zerkalo" which was launched to commemorate the 60th anniversary of the original Sputnik and the birth of rocket scientist Konstantin Tsiolkovsky, Cleaned the windows on the Russian segment and installed "Test" containers on the hatches of the Pirs Docking Compartment and the Poisk Module, Retrieved CKK 9M9 cassettes from Zvezda, Installed Struts, Gap Spanners, and Handrails on Zvezda in preparation for the arrival of Nauka in the future, Installed the "Impact" trays by the Zvezda thrusters, and photographed the aft end of Zvezda and the "OHA" Antenna, Installed Struts, Gap Spanners, Handrails, and Ladders on Poisk, Photographed the Russian Segment.

203.	Expedition 53 EVA 1	Randy Bresnik Mark T. Vande Hei	October 5, 2017 12:05	October 5, 2017 19:00	6 hours 55 minutes
		Replaced Latching End Effector (LEE-A) on Canadarm2, removed multi-layer insulation from a spare direct current switching unit, prepared a flex hose rotary coupler[237][238]
204.	Expedition 53 EVA 2	Randy Bresnik Mark T. Vande Hei	October 10, 2017 12:56	October 10, 2017 19:22	6 hours 26 minutes
		Finished Repairs to Canadarm 2 added lubricating oil to all the working parts, Replaced the Station's Cameras which are used to film NASA TV, Installed Lens Covers, Closed and Locked a Latch on the High Pressure Gas Tanks, Rotated a Pump Module in preparation for relocating to P6 on a future spacewalk, Changed the Sockets on the degraded Latching End Effector and Reinstalled them on the new unit on Canadarm 2, Removed Handrails on Tranquility in preparation for installation of the EWS Antennas on a future spacewalk.
205.	Expedition 53 EVA 3	Randy Bresnik Joseph M. Acaba	October 20, 2017 12:46	October 20, 2017 19:36	6 hours 49 minutes
		Finished Repairs to Canadarm 2 added lubricating oil to all working parts and installed a camera and replaced a degraded one, Replaced the Station's Cameras which are used to film NASA TV, Replaced a Blown Fuse on Dextre, Removed MLI from two ORUs stored on ESP2 in preparation for them to be moved by Dextre later this year. Three get ahead task were performed by the crew MLI was removed from the Pump Modules on ESP2 Bresnik almost got the second one, but time expired and he had to close the flap on the second Pump Module it will be moved on the next spacewalk, Installed the Radiator Grapple Bars delivered on SpaceX CRS2.

2018

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
206.	Expedition 54 EVA 1	Mark T. Vande Hei Scott D. Tingle	January 23, 2018 11:49	January 23, 2018 19:13	7 hours 24 minutes
		Replaced Latching End Effector (LEE-B) on Canadarm2, Installed failed LEE on ESP2, Replaced LEE Camera, Replaced EVA Socket.
207.	Expedition 54 EVA 2 *	Alexander Misurkin Anton Shkaplerov	February 2, 2018 15:34	February 2, 2018 23:47	8 hours 13 minutes
		Remove and replacement of an electronics box for a high-gain communications antenna on the Zvezda service module.
208.	Expedition 54 EVA 3	Mark T. Vande Hei Norishige Kanai	February 16, 2018 12:00	February 16, 2018 17:57	5 hours 57 minutes
		Finished removal and replacement of Latching End Effector on POA, Replaced LEE Camera, Installed Ground Strap on Canadarm2, Brought failed LEE inside, Lubricated Canadarm2, Moved Tool Platform on Dextre, Adjusted Struts on Flex Hose Rotary Coupler.

209.	Expedition 55 EVA 1	Andrew J. Feustel Richard R. Arnold	March 29, 2018 13:33	March 29, 2018 19:43	6 hours 10 minutes
		Installed two Wi-Fi antennas on the Node 3 module in preparation for the arrival of ECOSTRESS on SpaceX CRS-15, removed ammonia jumpers and inspected two working jumpers on the stations truss, replaced camera and lights used to film NASA TV
210.	Expedition 55 EVA 2	Andrew J. Feustel Richard R. Arnold	May 16, 2018 11:39	May 16, 2018 18:10	6 hours 31 minutes
		Transferred a Pump Flow Control Subassembly over to Dextre stowed failed PFCS on ESP-1, Replaced camera and lights used to film NASA TV, Replaced Space to Ground Transceiver Controller, Performed get aheads to Install handrails on Radiator Grapple Bars on S1, Removed thermal blankets and MLI from two Direct Current Switching Units on ESP-2, Prepped the Flex Hose Rotary Coupler on S1 for replacement. Spacewalk suffered a 7-minute delay because of a water leak which formed ice crystals inside the airlock.

211.	Expedition 56 EVA 1	Andrew J. Feustel Richard R. Arnold	June 14, 2018 12:06	June 14, 2018 18:55	6 hours 49 minutes
		Feustel and Arnold installed new high-definition cameras near IDA 2 mated to the front end of the station's Harmony module. The additions will provide enhanced views during the final phase of approach and docking of the SpaceX Crew Dragon and Boeing CST 100 Starliner commercial crew spacecraft that will soon begin launching from American soil. The astronauts also swapped out a camera assembly on the starboard truss of the station used to film NASA TV and closed an aperture door on the CATS experiment outside the Japanese Kibo module in preparation for disposal on SpaceX CRS 15 and replacement by its successor, ECOSTRESS. Get aheads involved relocating an adjustable grapple bar to the S1 Truss and securing the Flex Hose Rotary Coupler in preparation for replacement on the next spacewalk. During the spacewalk Feustel beat Jerry Ross, his STS 125 crewmate Dr. John Grunsfeld, Fyoder Yurchikhin, and Peggy Whitson to become third on the list of all time space walkers.[239]
212.	Expedition 56 EVA 2 *	Oleg Artemyev Sergey Prokopyev	August 15, 2018 16:17	August 15, 2018 00:03	7 hours 46 minutes
		The cosmonauts launched four cubesats and installed the Icarus experiment. Spacewalk fell behind schedule when Icarus failed to seat properly putting the spacewalk 90 minutes behind schedule and calling for an hour extension. The cosmonauts finished the spacewalk by retrieving experiments from the Pirs docking compartment and Poisk module[240]

213.	Expedition 57 EVA 1 *	Oleg Kononenko Sergey Prokopyev	December 11, 2018 15:59	December 11, 2018 23:44	7 hours 45 minutes
		The cosmonauts went outside to install a plug and thermal insulation on the Soyuz MS-09 spacecraft which was damaged by a powertool causing an air leak. The cosmonauts gave Soyuz MS-09 a clean bill of health before they patched it up clearing the vessel for entry on December 20, 2018. Get ahead task included swapping experiments on the Rassvet module.[241]

2019

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
214.	Expedition 59 EVA 1	Anne McClain Nick Hague	March 22, 2019 13:01	March 22, 2019 19:40	6 hours, 39 minutes
		McClain and Hague installed adapter plates while Dextre swaped the batteries between spacewalks. Get ahead task included removing debris from the Unity Module in preparation for the arrival of Cygnus NG-11 in April, stowing tools for the repair of the flex hose rotary coupler, and securing tiebacks on the solar array blanket boxes. This spacewalk was originally going to be carried out by European astronaut Alexander Gerst and Hague as part of Expedition 57, although it was delayed due to the Soyuz MS-10 launch abort.[242] Anne McClain became the 13th woman to perform a spacewalk.
215.	Expedition 59 EVA 2	Nick Hague Christina Koch	29 March 2019 11:42	29 March 2019 18:27	6 hours 45 minutes
		Hague and Koch finished the work of the first spacewalk and installed the final three adapter plates on the other side of the P4 Truss. The crew also transferred some tools and installed a grapple bar on the flex hose rotary coupler. Between spacewalks, Dextre will changed the batteries and the exposed pallet was loaded onto HTV-8 and jettisoned into space to burn up. One of the batteries malfunctioned and was removed by Dextre and discarded. Dextre also installed a Battery Discharge Unit and bought the failed unit which was damaged by the short inside where it was returned to earth on SpaceX CRS-17. Until the battery is repaired P4 will use the old batteries left on the station as spares. Get ahead task included installing gap spanners and breaking torque on the P6 batteries in preparation for their replacement by Expedition 61 crew members that fall. Hague also inspected sockets on P6 so the foot restraints could be attached. This spacewalk was supposed to be done by Anne McClain and Christina Koch as an all female spacewalk but because of problems with Christina's suit and the spare suit not ready or properly sized Anne McClain sat this spacewalk out and went out with David on the next spacewalk.[243] This spacewalk became the first for Koch who became the 14th woman to walk in space.[244]
216.	Expedition 59 EVA 3	Anne McClain David Saint-Jacques	8 April 2019 11:31	8 April 2019 18:00	6 hours 29 minutes
		McClain and Saint Jacques routed cables to be used as a redundant power supply for Canadarm2. The crew installed studs on the Columbus Module in preparation for the installation of the Bartolomeo exposed facility. The crew removed an adapter plate and reinstalled an old set of batteries as spares to replace a failed battery that malfunctioned on the last spacewalk. Saint Jacques became the fourth Canadian to do a spacewalk, the first Canadian ISS crew member to walk in space, and the first Canadian spacewalker since Dafydd Williams.[245]
217.	Expedition 59 EVA 4 *	Oleg Kononenko Aleksey Ovichinin	29 May 2019 15:42	29 May 2019 21:43	6 hours 1 minute
		Kononenko and Ovichinin removed experiments from the Pirs docking compartment and cleaned the windows. They also installed a ladder to connect Zarya to Poisk and re-positioned the Plume Measuring Unit. The crew then moved to the Zvezda Service Module and removed and jettisoned the Plasma Monitoring Units. Before they closed the hatch they sent a video of themselves and sang happy birthday in Russian to Alexei Leonov who was the first spacewalker and was celebrating his 85th birthday.[246]

218.	Expedition 60 EVA 1	Nick Hague Andrew R. Morgan	21 August 2019 12:27	21 August 2019 18:59	6 hours 32 minutes
		Hague and Morgan installed the final International Docking Adapter on the Harmony Module. Task for this spacewalk were identical to Spacewalk 194 and required work by both spacewalkers and Dextre to get the docking port installed. The crew also routed cables and installed Wi-Fi routers for upcoming experiments. [247]

219.	Expedition 61 EVA 1	Christina Koch Andrew R. Morgan	6 October 2019 11:39	6 October 2019 18:40	7 hours 01 minutes
		This spacewalk was the first of Expedition 61 and the first of a series of 5 to replace and improve ISS batteries on the P6 truss. [248]
220.	Expedition 61 EVA 2	Andrew R. Morgan Christina Koch	11 October 2019 11:38	11 October 2019 18:23	6 hours 45 minutes
		This spacewalk was the second of Expedition 61 and the second of a series of 5 to replace and improve ISS batteries on the P6 truss. Before they went out the hatch Mission Control Moscow relayed to the crew Alexei Leonov had passed away and this spacewalk is dedicated to him. As the crew came in and took off their suits each gave a choice of words before station commander Luca Parmitano said "Farewell Alexei, and ad astra." [249] [250]
221.	Expedition 61 EVA 3	Christina Koch Jessica Meir	18 October 2019 11:38	18 October 2019 18:55	7 hours 17 minutes
		This spacewalk was the third of Expedition 61 and the third of a series of 5 to replace and improve ISS batteries on the P6 truss. Some of the battery swaps have been moved to EVA 225 and a later date because of a power failure in a Battery Charge Discharge Unit in slots 5 and 6 on the P6 Truss taking the 4B battery channel offline. Koch and Meir went outside and replaced the failed unit and brought it inside. The battery swap was moved to EVA 225 to save time and Meir and Koch wrapped up the spacewalk by installing a stanchion on the Columbus Module and tightening the bolts on the S0 Truss which had come loose. This spacewalk was the first all female spacewalk on the station. During the spacewalk, President Trump called the station and congratulated Koch and Meir on this milestone. [251]
222.	Expedition 61 EVA 4	Luca Parmitano Andrew Morgan	15 November 2019 11:39	15 November 2019 18:18	6 hours 39 minutes
		First of a series of four spacewalks to repair the Alpha Magnetic Spectrometer which suffered a power failure last year in one of its four cooling pumps limiting the operation of the experiment. Parmitano and Morgan went outside and removed a cover plate from AMS and jettisoned it into space to make way for a cryo pump that they will assemble between spacewalks. Some of the bolts put up a fight but Parmitano got them all out. The highlight of the spacewalk is when Andrew Morgan threw the cover plate overboard and it drifted off aft of the station into the vacuum of space. The plate will stay in orbit for a few days until the end of December when it enters the atmosphere and burns up. The crew also removed several carbon fiber strips around fluid lines and installed handrails and grapple bars as get-ahead task. This spacewalk marks Parmitano's return to spacewalking after the Water in the Helmet Incident during EVA 171.[252]
223.	Expedition 61 EVA 5	Luca Parmitano Andrew Morgan	22 November 2019 12:02	22 November 2019 16:35	6 hours 33 minutes
		The second in a series of four spacewalks to repair the AMS. Parmitano and Morgan cut fluid lines and installed a vent on the AMS Experiment to prep the old cooling pump for removal on the third spacewalk. Parmitano and Morgan also routed cables and installed a new power supply to power the pumps when they are installed on the third spacewalk. [253]
224.	Expedition 61 EVA 6	Luca Parmitano Andrew Morgan	2 December 2019 11:31	2 December 2019 17:33	6 hours 2 minutes
		The third in a series of four spacewalks to repair the AMS. Parmitano and Morgan went out on the third spacewalk and installed the cryo pump and routed fluid and electrical lines to power the pump. Flight controllers in Houston, Huntsville, and at CERN activated the experiment and radioed to the crew that AMS passed with flying colors. The crew finished the spacewalk by doing a get-ahead task by covering AMS with thermal blanket. [254]

2020

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
225.	Expedition 61 EVA 7	Christina Koch Jessica Meir	15 January, 2020 11:35	15 January, 2020 19:04	7 hours 29 minutes
		The fourth in a series of five spacewalks to replace the batteries on the P6 Truss. Spacewalk suffered a 15-minute delay when Koch lost her helmet lights and camera. Meir managed to attach a hook onto the camera to prevent it from floating away and stowed it in Koch's tool bag. The spacewalkers managed to replace two batteries plus a third as a getahead task and had to stay in signal range of the WETA antennas so Meir could check on Koch at night who did not have any helmet lights. The spacewalkers will replace the camera between spacewalks and will head back out to replace the final three batteries on the next spacewalk.[255]
226.	Expedition 61 EVA 8	Christina Koch Jessica Meir	20 January, 2020 11:35	20 January, 2020 18:33	6 hours 58 minutes
		The fifth and final in a series of five spacewalks to replace the batteries on the P6 Truss. Koch and Meir managed to get all the batteries replaced and stored two old ones on the exposed pallet to return to earth on HTV 9 where they will be incinerated on reentry. Koch and Meir finished the day by sending down a message to commemorate Martin Luther King Jr. Day. Today's spacewalk moves Koch up to third place and Meir up to fourth place on the all time female spacewalker list. [256]
227.	Expedition 61 EVA 9	Andrew Morgan Luca Parmitano	25 January, 2020 12:04	25 January, 2020 18:20	6 hours 16 minutes
		The fourth and final in a series of four spacewalks to repair the AMS. Spacewalk suffered a 10-minute delay when a strap got stuck in the hatch preventing depressurization of the airlock. The two spacewalkers completed all the task and at 17:30 hours Luca Parmitano opened a valve to start the flow of CO2 gas to AMS and contacted CERN to turn the experiment on. AMS passed all test and worked flawlessly. A leak was found in a cooling line but Parmitano patched it and the spacewalk resumed without incident. As a getahead task Parmitano and Morgan cleaned and replaced glare filters on the NASA TV cameras used to film the spacewalk. [257]

228.	Expedition 63 EVA 1	Chris Cassidy Robert Behnken	26 June, 2020 11:32	26 June, 2020 17:39	6 hours 7 minutes
		First in a series of four spacewalks to replace old Nickel-hydrogen batteries on the ISS S6 Truss segment with new Lithium-ion batteries. Behnken is not a member of the Expedition 63 crew but instead is flying as Joint Operations Commander on SpaceX's Crew Dragon Demo-2 mission, which was extended so that the mission's two crew members could support ISS operations for an extended period of time. At the conclusion of the spacewalk the two batteries were turned on and the ground reported that they were working and that there were no signs of a short.[258]
229.	Expedition 63 EVA 2	Chris Cassidy Robert Behnken	1 July, 2020 11:13	1 July, 2020 16:14	6 hours 1 minute
		Second in a series of four spacewalks to replace old nickel-hydrogen batteries on the ISS S6 Truss segment with new lithium-ion batteries. Route cables for a new wireless communications system.[259]
230.	Expedition 63 EVA 3	Chris Cassidy Robert Behnken	16 July, 2020 11:10	16 July, 2020 17:10	6 hours
		Third in a series of four spacewalks to replace old nickel-hydrogen batteries on the S6 Truss segment with new lithium-ion batteries. That work was completed with this EVA. Installed a high-definition camera boom on the inboard power truss and begin preparations of Tranquility (Node 3) port for installation of the Bishop Airlock Module.[260]
231.	Expedition 63 EVA 4	Chris Cassidy Robert Behnken	21 July, 2020 11:12	21 July, 2020 16:41	5 hours 29 minutes
		Fourth in a series of four spacewalks for Expedition 63. Install robotics tool box on a rail-mounted carrier used to move the station's robot arm from one worksite to another, remove two of six ground-handling “H” fixtures at the base of the solar wings for future upgrades, routing and connecting Ethernet cables for external experiment data transmission, and conclude preparations of Tranquility (Node 3) port for installation of the Bishop Airlock Module (CRS-21).[261]

232	Expedition 64 EVA 1 ^	Sergey Ryzhikov Sergey Kud-Sverchkov	18 November, 2020 15:12	18 November, 2020 22:00	6 hours 48 minutes
		First in a series of spacewalks to decommission the Pirs Airlock which is scheduled to be replaced by Nauka in the spring of 2021. Task involved testing Poisk so the crew can egress, performing leak checks on the hatch, moving an antenna over to Poisk, cleaning Zvezda's windows, repositioning the Plume Measuring Unit on the Poisk Module, retrieving and replacing an Impact panel on Zvezda, and replacing a fluid flow regulator on Zarya. [262][263] Spacewalk faced a delay when the bolt on the catch of the pressurized container did not release and the astronauts had the wrong socket wrench for the task. The fluid flow regulator will be replaced at a later date with a new unit once the pressurized container is fixed. Because of time the window cleaning was also moved to another spacewalk because the task is non critical.[264]

2021

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
233.	Expedition 64 EVA 2	Michael Hopkins Victor Glover	27 January, 2021 11:28	27 January, 2021 18:24	6 hours, 56 minutes
		Spacewalk to activate and install the Airbus Bartolomeo exposed experiment platform and the Columbus Ka band Terminal (COL-Ka) onto Columbus. Remove H fixtures from the P-6 Truss in preparation for installation of upgrades to the solar arrays. Due to issues with the installation of Bartolomeo, only four out of the six cables could be installed. The platform is "partially operational and in a safe configuration" according to NASA; the final two cables will be installed on a future spacewalk.[265]
234.	Expedition 64 EVA 3	Michael Hopkins Victor Glover	1 February, 2021 12:56	1 February, 2021 18:16	5 hours, 20 minutes
		Install a new lithium-ion battery on the P-4 truss, where an earlier lithium replacement blew a fuse in April 2019. Upgrade high definition video and camera gear on ISS exterior and Kibō Robotic Arm. Remove H fixtures on the P-4 in preparation for installation of upgrades to the solar arrays.[266]

Planned

#	Mission	Spacewalkers	Start (UTC)	End (UTC)	Duration
235.	Expedition 64	Kathleen Rubins Victor Glover	8 February, 2021	8 February, 2021	TBA
		Install modification kit to prepare Station for new solar array installation.
236.	Expedition 64	Kathleen Rubins Soichi Noguchi	16 February, 2021	16 February, 2021	TBA
		Additional upgrades and Kibo module platform work.

[267] [268] [269] [270]

*denotes spacewalks performed from the Pirs docking compartment in Russian Orlan suits.
^denotes spacewalks performed from the Poisk module in Russian Orlan suits.
†denotes spacewalks performed from the visiting space shuttle's airlock.
‡denotes the one EVA and one IVA performed from the transfer compartment at the forward end of the Zvezda Service Module.
All other spacewalks were performed from the Quest airlock.
ISS Expedition spacewalks are separated from shuttle spacewalks by a separator.

Gallery


Stephen Robinson participates in the third spacewalk during STS-114.	European Space Agency astronaut Christer Fuglesang participates in the second spacewalk of STS-116.	Steven Swanson waves to Patrick G. Forrester during the third EVA of STS-117.	Robert L. Behnken on the third spacewalk of STS-123.

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External links

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