Did you know? Mass of Triton (moon of Neptune) (21.4 sextillion kg) is 200 x Mass of Enceladus (moon of Saturn) (108 quintillion kg) Tweet this comparison
Length of a tennis court (23.77 m)
/fact/length-of-a-tennis-court
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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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