Theory Observation |
Universe Simplified Timescale
IN SHORT - - no summary needed - |
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The Universe's age is now well established at 13.7 billion years. Would the Universe have been born today at 0:00 a.m., the Universe whole history would have unfolded this way -as seen from tonight at midnight:
- some time before 3 seconds after 12:00 a.m.: the atoms' nuclei capture the electrons, as the Universe becomes transparent
- 0:21:40 a.m.: first stars appear
- 1:45 a.m.: the proto-galaxies appear
- 2:06 a.m.: the Dark Ages end as the ultraviolet emanating from the first objects in the Universe completely re-ionized the neutral hydrogen
- 6:30 a.m.: our own Milky Way Galaxy has been born
- 12:15 p.m.: the dark energy beginning to accelerate the Universe's expansion
- 3:55 p.m.: the Sun and the solar system have been born
- 7:51 p.m.: the life appears on Earth
- 7 minute before midnight: dinosaurs' extinction
- 45 second before midnight: manking appearing
- 3 second before midnight: Homo sapiens appearing
- the whole history of manking since the Neolithics is contained in the last 8 hundreths of a second before midnight
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