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Period of Saturn's orbit (29.5 y) is 2.5 x Period of Jupiter's orbit (11.86 y)
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Diameter of the (fictional) Death Star in the first Star Wars movie (120 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.