What Happens When Astronauts Cry in Space?

Zero gravity means that you can't cry in space; tears stick to your eyes as
liquid balls and eventually float away.

You can cry in the zero gravity of space, but the tears won't stream down
your face like they do on Earth. That's what astronaut Andrew Feustel
discovered during a spacewalk in 2011. He wasn't actually weeping out of
sadness -- his eye was watering because a small irritant had lodged there
during a seven-hour repair mission outside the International Space Station.
The tears "don't fall off of your eye, they kind of stay there," he said
later, describing the "liquid ball" that clung to his eyeball.

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