There are more nerve cells in the human brain than there are stars in the Milky Way.
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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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A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
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On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
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If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
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If two pieces of metal touch in space, they become permanently stuck together.
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There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
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