If two pieces of metal touch in space, they become permanently stuck together.
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Summer on Uranus lasts for 21 years.
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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.
219
It 'snows' metal on Venus.
13
NASA invented baby food as we know it today.
7
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18