Earth is the only planet in our solar system that's not named after a god or goddess.
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The light hitting the earth right now is 30 thousand years old.
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Astronauts get taller when they are in space.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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The Earth gets 100 tons heavier every day due to falling space dust.
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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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The moon is actually moving away from Earth at a rate of 1.5 inches per year.
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Some asteroids have other asteroids orbiting them.
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