An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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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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Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
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Astronauts get taller when they are in space.
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A comet's tail always points away from the sun.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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The sun puts out more power in 1 second than mankind has ever used within human existence.
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The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
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