More than 20 million meteoroids enter Earth's atmosphere every day.
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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.
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Lightning strikes about 6,000 times per minute on this planet!
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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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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Some asteroids have other asteroids orbiting them.
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Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
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