re: Anyone watch the perseverance rover interviews on NASA Sciencr live today

quote:

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If someone had the money too, they could take a space flight and come back with much more time passing on earth than did for the space traveler

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Time dilation, baw

Someone traveling at 99% the speed of light for 10 years...say 5 years out and 5 years back, would arrive at an earth that's 71 years in the future.

A similar effect could be achieved by hanging out next to a massive object (neutron star, black hole, etc) for a while and then coming back....assuming, of course, that you would not have every atom pulled apart and you could come back from that.