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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The light hitting the earth right now is 30 thousand years old.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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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.
4
If you went out into space, you would explode before you suffocated because there's no air pressure.
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Venus is the only planet that rotates clockwise.
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A 100-pound person on Earth would weigh 38 pounds on Mars.
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There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
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