Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
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The population of the Earth has more than doubled since 1950.
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The heart of an astronaut actually gets smaller when in outer space.
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There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
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There are two golf balls sitting on the moon.
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Some asteroids have other asteroids orbiting them.
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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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