In the last 7 years, humanity has discovered 43 potentially habitable planets.
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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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There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
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The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
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The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
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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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There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
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