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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In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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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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Summer on Uranus lasts for 21 years.
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The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
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It 'snows' metal on Venus.
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