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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Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
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Summer on Uranus lasts for 21 years.
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The heart of an astronaut actually gets smaller when in outer space.
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Astronauts get taller when they are in space.
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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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There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
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