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Diameter of Uranus (50,700 km) is 4 x Diameter of the Earth (12,760 km)
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Diameter of Laniakea supercluster of galaxies (4.92 sextillion km)
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.