Earth is the only planet in our solar system that's not named after a god or goddess.
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If two pieces of metal touch in space, they become permanently stuck together.
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Some asteroids have other asteroids orbiting them.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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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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Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
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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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The Earth gets heavier each day by tons, as meteoric dust settles on it.
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