almost 3 years
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surviving_pdx
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The ancient rivers of Mawrth Vallis. These inverted channels, similar to those found on Earth, are an indication of one place where water flowed in the distant past on Mars. More details about this Mars Reconnaissance Orbiter image: https://t.co/yHwrSNNbbh https://t.co/Bzc2JvBPDm
Any room for a colony there? 👀 https://twitter.com/NASAMars/status/1471168624832380932