Did you know? Height of St Paul's Cathedral in London (111 m) is about as big as Length of the Saturn V Apollo Program launch rocket (110.6 m)
Number of galaxies in the observable universe (100bn )
/fact/number-of-galaxies-in-the-observable-universe
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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.