If two pieces of metal touch in space, they become permanently stuck together.
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An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
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Pluto is smaller than Russia.
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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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There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
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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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Earth is the only planet in our solar system that's not named after a god or goddess.
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