Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
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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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Jupiter's moon Ganymede, is larger than the planet Mercury!
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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.
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All of the Earth's continents are wider at the north than in the south - and nobody knows why.
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A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
Lightning strikes about 6,000 times per minute on this planet!
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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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