Did you know?
Mass of Mercury (330 sextillion kg) is 5 thousand x Mass of Miranda (moon of Uranus) (66 quintillion kg)
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Diameter of Neptune (49,200 km)
If this was a standard unit ...
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.