Desert planet

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A desert planet, also known as a dry planet, an arid planet, or a dune planet, is a type of terrestrial planet that is arid at the surface level. Deserts can be cold or hot, and even retain water, like Antarctica or the Sahara on Earth; however, desert planets are arid across their entire surface. Mars is a prominent example of a (cold) desert planet with a tenuous atmosphere. But also other arid planets with atmospheres more as well as less dense have been identified as desert planets, like Venus and Mercury.

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