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As far as I recall, the Voyagers are coasting along at 40,000 klm/hr, and if
aimed at Alpha Centauri, would take about 75,000 yrs to get there. We could send a much faster vehicle
which would continue to slowly accelerate for many years, but I'm thinking that the figure would still be
somewhere in the 10-20,000 yr range.
raymo
Last edited by raymo; 12-08-2021 at 04:47 PM.
Reason: more text
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