Did you know? Mass of Proteus (moon of Neptune) (50.4 quintillion kg) is 25 thousand x Mass of Deimos (moon of Mars) (2 quadrillion kg)
Mass of Ariel (moon of Uranus) (1.353 sextillion kg)
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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.