Graphical timeline of the universe

This more than 20-billion-year timeline of our universe shows the best estimates of major events from the universe's beginning to anticipated future events. Zero on the scale is the present day. A large step on the scale is one billion years; a small step, one hundred million years. The past is denoted by a minus sign: e.g., the oldest rock on Earth was formed about four billion years ago and this is marked at -4e+09 years, where 4e+09 represents 4 times 10 to the power of 9. The "Big Bang" event most likely happened 13.8 billion years ago; see age of the universe.

Graphical timeline of the Big BangGraphical timeline of the Stelliferous EraPre-NectarianNectarianLower ImbrianUpper ImbrianEratosthenianCopernican periodLunar geologic timescaleHadeanEoarcheanPaleoarcheanMesoarcheanNeoarcheanPaleoproterozoicMesoproterozoicNeoproterozoicPaleozoicMesozoicCenozoicEra (geology)HadeanArcheanProterozoicPhanerozoicEon (geology)Geological time scaleLife on MarsPrecambrianSolar shadeOrigin of lifeWhite dwarfAsymptotic giant branchHorizontal branchRed giantMain sequenceProtostarElliptical galaxyAndromeda-Milky Way collisionNeptuneBlack dwarfPlanetary nebulaHelium flashMammalsMulticellular lifeAcasta GneissEarthGeological time scaleSupernovaGalaxy formation and evolutionList of oldest starsReionizationBig Bang

See also
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.