In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
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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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Mars had an oxygen-rich atmosphere around 4 billion years ago
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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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Jupiter is bigger than all the other planets combined.
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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.
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