Earth is the only planet in our solar system that's not named after a god or goddess.
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Today's top fuel dragsters take off with more force than the space shuttle.
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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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Some asteroids have other asteroids orbiting them.
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More than 20 million meteoroids enter Earth's atmosphere every day.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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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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