Did you know?
Mass of Nereid (moon of Neptune) (27 quintillion kg) is 2.5 thousand x Mass of Phobos (moon of Mars) (10.8 quadrillion kg)
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Period of Saturn's orbit (29.5 y)
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.