Age of the Earth

Age of the Earth (4.54 billion y)



Neat Ratios ...

Age of the Earth (4.54 billion y)

  • is about as big as Time since the start of the formation of the Solar System (4.6 billion y)...more
  • is 20 x Galactic Year (period of rotation of the Milky Way galaxy) (225 million y)...more
  • is 200 x Time since the end of the Paleogene geologic period (23 million y)...more

If this was a standard unit ...

Is That A Big Number? - The Book

Yes, there's now a book based on these numbers. Oxford University Press: July 2018.

Click here to learn more about it.

Click here for Podcast: Andrew Elliott interviewed for New Books Network.