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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Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
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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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Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
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A comet's tail always points away from the sun.
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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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Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
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There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
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