| http://www.w3.org/ns/prov#value | - cause it showcases a very different chemistry than most of the previous discoveries about water on Mars, which is now quite dry.Scientists believe that a lot of water once flowed through these rocks through some sort of fracture, leaving an unusually high concentration of clay.The analysis reveals traces of a likely drinkable type of water that dates to the first billion years of Martian history,
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