Nearly 25 years ago, the Pathfinder spacecraft explored a suspected floodplain on Mars. Unbeknownst to NASA at the time, the waters that lo...
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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