Did you know?
Mass of Mercury (330 sextillion kg) is 20 x Mass of dwarf planet Eris (16.6 sextillion kg)
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Other land in Sweden (2011) (9,510 km^2)
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.