An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
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Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
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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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