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.
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One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
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There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
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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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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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Mars had an oxygen-rich atmosphere around 4 billion years ago
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