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Pluto was discovered by Clyde William Tombaugh in 1930.
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Clyde William Tombaugh discovered Pluto in 1930.
Sir William Herschel found Uranus in 1781.
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Clear photos of deep space are taken by the Hubble Space Telescope.
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Mars is given its red color by limonite, a brick-colored mineral.
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The first space shuttle, Columbia, was launched by the United States in 1981.
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