Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
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Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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The heart of an astronaut actually gets smaller when in outer space.
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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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The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
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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.
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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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