There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
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In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
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If NASA sent birds into space they would soon die; they need gravity to swallow.
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From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
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The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
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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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Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
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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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