In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
It takes eight and a half minutes for light to get from the sun to earth.
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Earth is the only planet in our solar system that's not named after a god or goddess.
17
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
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
Pluto is smaller than Russia.
9
Lightning strikes about 6,000 times per minute on this planet!
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