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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41% of the moon is not visible from earth at any time.
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The population of the Earth has more than doubled since 1950.
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The earth is .02 degrees hotter during a full moon.
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All of the Earth's continents are wider at the north than in the south - and nobody knows why.
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Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
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Some asteroids have other asteroids orbiting them.
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