According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
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If two pieces of metal touch in space, they become permanently stuck together.
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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
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.
5
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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If NASA sent birds into space they would soon die; they need gravity to swallow.
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