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Mass of Enceladus (moon of Saturn) (108 quintillion kg) is 10 thousand x Mass of Phobos (moon of Mars) (10.8 quadrillion kg)
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Time since the end of the Pleistocene geologic epoch (11,700 y)
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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