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Pm_me_some_green_tea t1_it0o9kg wrote on October 20, 2022 at 1:59 AM

Reply to comment by themainemane in The Europa Clipper mission may be as exciting as a manned mars mission and it’s only two years away by Wide-Escape-5618

I'd say light is definitely the limitation. If we could move at light speed we would still never reach 96% of the known universe because of it's rate of expansion, no matter how long are lives were.