The @MarsCuriosity rover has discovered lots of evidence for ancient lakes on Mars, but what mission scientists saw in this new panorama surprised them. More: https://go.nasa.gov/3lfRwbn
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NASA's Curiosity Finds Surprise Clues to Mars' Watery Past
Among other discoveries made by the rover, rippled rock textures suggest lakes existed in a region of ancient Mars that scientists expected to be drier.NASA Mars Exploration