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The Six Places on Earth That Most Resemble Other Planets Space researchers uses deserts, valleys, and freezing lakes to test equipment and simulate procedures on space missions. Here's where they put future exploration to the test - without leaving our planet

To get into space, we have to practice at home. That's the idea behind NASA's Earth Analogs program, which tests people, ideas and technology at a variety of inhospitable places around the world. Finding places on Earth with physical similarities to space sites isn't easy - but the space agency has located desert, volcanic, arctic, lake and ocean locations for testing all manner of things.

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