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Galileo created a telescope that brought the universe closer. Galileo discovers Jupiter.
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Isaac created a telescope that had a clearer mirror and also got rid of any distortion of light.
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Johannes Hevelius developed a 150 ft long telescope thst was hung by ropes.
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Sir William Hershel discovered Uranus with a hand made reflecting telescope.
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John William Draper produced the first photograph of the moon.
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An obsevertory was put on Mt. Wilson to see images closer. Saw Nebulae in a clearer detail.
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Edwin Hubble used the Mt. Wilson Observertory to discover the red shift of galaxies.
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In 1930 Clyde Tombaugh discovered the smallest planet Pluto soon to be classified as a dwarf planet.
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In 1964 Penzias and Wilson made a telescope that measured radio and microwaves. They discovered Cosmic Background Radiation.
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In 1990 the Hubble Space Telescope launched into space to take very clear pictures.
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The Kepler Telescope launched to find Earth like planets.