Keep exploring with robots. 1000's of times more science for the money. Plus they will need all those same types of instruments anyway. Manned will come eventually. Europa and Encelidus first. Cautionary Tale: One of the early bathyscaphes was manned and had both a porthole and a video camera monitor. The occupants spent all their time looking at the monitor because the view was so much better. These are no longer manned.
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