Astronauts can’t cry.

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Astronaut
Chris as an astronaut. Image credit: aseemc, (CC BY-SA 2.0)

Astronauts can get lonely in space but they can’t cry, not even if they wanted to. This is because even if their eyes produce tears, the tears stay in their eyes like a ball instead of falling down their cheeks. Again, blame the lack of gravity.

 

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