Earth is the only planet in our solar system that's not named after a god or goddess.
17
The population of the Earth has more than doubled since 1950.
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There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
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Only 55% of Americans know that the sun is a star.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Pluto is smaller than Russia.
9
Summer on Uranus lasts for 21 years.
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