If two pieces of metal touch in space, they become permanently stuck together.
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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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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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There are more nerve cells in the human brain than there are stars in the Milky Way.
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The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
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