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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Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
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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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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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The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
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Pluto is smaller than Russia.
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MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
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