The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
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In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
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A 100-pound person on Earth would weigh 38 pounds on Mars.
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Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
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The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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41% of the moon is not visible from earth at any time.
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There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
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