Astronauts can laugh in space all they want, but the act of crying is quite different without gravity. When asked if he could cry in space, Canadian astronaut Chris Hadfield answered, “Can you cry in space? Your eyes make tears but they stick as a liquid ball. In fact, they sting a bit. So — space tears don’t shed.” Unless an astronaut wipes that water away, tears in space can form a giant clump that can break free of your eye, as The Atlantic explained. So in space, you can actually watch a ball of your tears float around.