Let's urge Congress to rethink an unmanned spacecraft to Europa (ref. "Unmasking Europa", Richard Greenberg). It might not have to drill through a thick layer of ice, provided it landed in one of the "cracks" in the ice. The best chance of finding existing unicellular, if not multicellular life, should be on that moon, and not on Mars. Wish are efforts luck, during the next four years! Sincerely, jim martin
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