Earth is the only planet in our solar system that's not named after a god or goddess.
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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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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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If two pieces of metal touch in space, they become permanently stuck together.
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A comet's tail always points away from the sun.
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When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
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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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Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
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