Timeline of Universe's and Earth's History in Galactic Years
The following list assumes that 1 galactic year is approximately 225 million years.
about 60 galactic years ago | Big Bang |
about 59 galactic years ago | Birth of the Milky Way |
20 galactic years ago | Birth of the Sun |
16 galactic years ago | Oceans appear on Earth |
15 galactic years ago | Life begins on Earth |
14 galactic years ago | Prokaryotes appear |
13 galactic years ago | Bacteria appear |
10 galactic years ago | Stable continents appear |
7 galactic years ago | Eukaryotes appear |
4 galactic years ago | Multicellular organisms appear |
2.8 galactic years ago | Cambrian explosion |
1 galactic year ago | Permian–Triassic extinction event |
0.26 galactic year ago | Cretaceous–Paleogene extinction event |
0.001 galactic year ago | Appearance of modern humans |
Present day | |
---|---|
6 galactic years in the future | Sun's habitable zone moves outside of the Earth's orbit |
10 galactic years in the future | The Milky Way and Andromeda Galaxy begin to collide |
30 galactic years in the future | Sun ejects a planetary nebula, leaving behind a white dwarf |
Read more about this topic: Galactic Year
Famous quotes containing the words universe, earth, history, galactic and/or years:
“There is not in the universe a more ridiculous, nor a more contemptible animal, than a proud clergyman.”
—Henry Fielding (17071754)
“If that the earth could teem with womans tears,
Each drop she falls would prove a crocodile.”
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“English history is all about men liking their fathers, and American history is all about men hating their fathers and trying to burn down everything they ever did.”
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“In history as in human life, regret does not bring back a lost moment and a thousand years will not recover something lost in a single hour.”
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