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William Herschel discovered Planet Uranus. observation showed it to orbit the sun beyond Saturn
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William Herschel discovered Enceladus. It is an intriguing water-rich moon of saturn.
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The Asteroid Ceres was discovered by Guiseppe Piazzi.
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llness concluded Guiseppe Piazzis series of astronomical observations of the object. He had discovered on January 1
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Baron Van Zach and Heinrich Oblers observationally 'recovered' the object discovered on jan 1st. It was really discovered by Guiseppe Piazzi
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Gallie and Diarrest sighted the planet Neptune for the first time .
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Clyde Tombaugh had discovered Pluto. He discovered it by systematically searching the sky based on predictions.
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Russia score two important "firsts", space craft venera 1 became the first to be launched from a space vehicle. Already in Earth orbit and would later become the first to fly by another planet (Venus; how ever radio contact was lost before the fly-by took place).
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Launch of mars 1, an early soviet attempt to reach the red planet. Though commmunication was lost in route.
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Mariner 2 flew by venus .The first spacecraft to return data from the Vicinity of another planet.
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Launch of venera 3, the firdt spacecraft to hit another planet. Unfortunally communication had been lost.
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Mariner 9 became the first spacecraf to orbit another planet. When it was placed in orbit around mars.
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Chiron , an odd object that looks a comet but has an orbit more like that of a planet, was discovered by Charles Kowal
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Contact was lost with the Mars observer spacecraft. When its retrorocket system was pressured .As if approaded the red planet.
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The Mars Exploration rover. "Spirit landed saftely at Crater Gusew on mars".
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a hubble space telescope study was released .This data containing information about the water richen nature. Of Dwarf planet