"It's very dangerous to put astronauts on a moon base where there's radiation, solar flares and micro meteorites. It'd be much better to put robots on ...
Our astronauts, when they go orbiting around the earth, they actually come back slightly younger than a twin that they would have on the planet Earth who was stationary. This is called the twin paradox.
Photo by Ákos Szabó
Photo by Ian Turnell
Our astronauts, when they go orbiting around the earth, they actually come back slightly younger tha...
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