If two pieces of metal touch in space, they become permanently stuck together.
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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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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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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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Mars had an oxygen-rich atmosphere around 4 billion years ago
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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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