The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
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An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
Summer on Uranus lasts for 21 years.
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If two pieces of metal touch in space, they become permanently stuck together.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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