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Time since the start of the formation of the Solar System (4.6 billion y) is 200 x Time since the end of the Paleogene geologic period (23 million y)
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Mass of the Statue of Liberty (201,400 kg)
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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