Cosmic Timeline

Background

Terms

Gya, Byr #card

billion years ago, billion years from now

Mya, myr #card

million years ago, million years from now

kya, kyr #card

thousand years ago, thousand years from now

Cosmic Era #card

13.8 Gya - Now

Ancient Universe Era #card #bidirectional

13.8 - 12.85 Gya

Big Bang #card #bidirectional

13.8 Gya (1/365, “Jan 1”)

Oldest known Gamma ray burst #card #bidirectional

13.1 Gya (19/365, “Jan 19”)

Galactic Universe Era #card #bidirectional

12.85 Gya - Now

Pre Milky Way Era #card #bidirectional

12.85 Gya - 11 Gya

First galaxies form #card #bidirectional

12.85 Gya (26/365, “Jan 26”)

Milky Way Era #card #bidirectional

11 Gya - Now

Pre Solar System Era #card #bidirectional

11 Gya - 4.57

Milky Way Galaxy formed #card #bidirectional

11 Gya (75/365 “Mar 16”)

Milky Way Galaxy disk formed #card #bidirectional

8.8 Gya

Solar System Era #card #bidirectional

4.57 Gya - Now

Pre Life on Earth Era #card #bidirectional

4.57 Gya - 4.1 Gya

Formation of the Solar System #card #bidirectional

4.57 Gya

Oldest rocks known on Earth #card #bidirectional

4.4 Gya

Life On Earth Era #card #bidirectional

4.1 Gya - Now