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Aristotle's theory that the earth was the center of the universe and the universe was only considered to be part of what is considered our solar system today.
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Aristotle's theory that the earth was the center of the universe and the universe was only considered to be part of what is considered our solar system today.
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At the turn of the 20th century women began to play a role in the discoveries of astronomy such as Henrietta Swan Leavitt, Annie Jump Cannon, and Maria Mitchell.
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The existence of the Earth's galaxy, the Milky Way, as a separate group of stars, was proved, along with the existence of "external" galaxies
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Scientists began discovering forms of light which were invisible to the naked eye which had a major impact on astronomy,growing the fields of infrared astronomy, radio astronomy, x-ray astronomy and gamma-ray astronomy
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The world is destroyed because of destructuion to the ozone layer. but there will be another world.
