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 light hitting the earth right now is 30 thousand years old.
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A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
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In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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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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A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
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