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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 Armenia (2014) (9,280 km^2)
If this was a standard unit ...
"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
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Click here for Podcast: Andrew Elliott interviewed for New Books Network.