The Case for Callisto Submitted by MoreGull t3_11dhit7 on February 27, 2023 at 5:31 PM in space 122 comments 140
doctorclark t1_ja996qo wrote on February 27, 2023 at 7:57 PM Reply to comment by MoreGull in The Case for Callisto by MoreGull The true profit was the 499 generations of human civilization we met along the way. Permalink Parent 5
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