There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
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The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
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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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The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
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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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Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
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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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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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