Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
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Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
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Astronauts cannot burp in space.
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Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
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Jupiter's moon Ganymede, is larger than the planet Mercury!
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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
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