Islands

But the dry, cold, rocky desert that is Devon Island meets most other criteria.

The place is big, too: at 66 800 sq km (almost exactly twice the size of Belgium) it is the world’s largest uninhabited island. Devon Island also contains the Haughton impact crater, a 20-km scar on the landscape gouged out by a giant meteorite some 23 million years ago, which closely resembles similar craters on Mars.

European Space Agency – Postcard From Mars (2001)

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