‘We thought it was impossible:’ Water frost on Mars discovered near Red Planet’s equator

Water frost has been spotted at the equator of Mars for the first time. In this region of the Red Planet, equivalent to its tropics, it was previously believed that it would be impossible for frost to exist. 

The discovery could be crucial to modeling where water exists on Mars and how it is exchanged between the Red Planet’s atmosphere and its surface. This could be vital for future crewed exploration of Mars

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