An unwelcoming polar desert, Devon Island is one of the best accessible stand-ins for Mars and the moon. Its dusty, windy conditions and terrain mimic the Martian surface, and its complete isolation lends itself to psychological tests. However, the island does have one thing that outer space doesn't: polar bears.
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Key Facts In This Video
Okunoshima Island in Japan is now overrun by rabbits. 00:07
The largest uninhabited island on Earth measures 21,331 sq. miles. 01:31
The ruins of Hashima Island were used as a Bond villain's lair are now a tourist site. 03:19