Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
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On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
Only 55% of Americans know that the sun is a star.
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If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10