Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
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Today's top fuel dragsters take off with more force than the space shuttle.
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On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
Buzz Aldrin’s mother’s maiden name was Moon.
9
More than 20 million meteoroids enter Earth's atmosphere every day.
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Pluto is smaller than Russia.
9
Some asteroids have other asteroids orbiting them.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
14