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In 1997, NASA’s Pathfinder Mission Unknowingly Landed Near the Shores of a Ancient Martian Sea


Nearly 25 years ago, the Pathfinder spacecraft explored a suspected floodplain on Mars. Unbeknownst to NASA at the time, the waters that long ago carved Pathfinder’s landing site spilled out from a previously undocumented inland sea nearby, new research shows.

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