Only 55% of Americans know that the sun is a star.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
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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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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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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The earth is .02 degrees hotter during a full moon.
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