From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
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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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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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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 density of Saturn is so low that if you were to put it in a giant glass of water it would float.
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Sound doesn't travel in space.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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