Viking 2 Likely Came Close to Finding H2O Discovery News

NASA’s Viking probes landed on Mars in 1976 to look for water and signs of life. Finding neither, Mars was abandoned for the next two decades.
But if Viking 2, which touched down in an equatorial region known as Utopia Planitia, had just dug down into the soil a few more inches, scientists now think it would have hit nearly pure frozen water.