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Galileo uses telescope for astronomical purposes he discovers the Moon's craters and the Milky Way galaxy.
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The first spotting of the moon through a telescope by Galileo
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Christian Huygens discovers Saturn's rings and Titan.
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Edmond Halley correctly predicts the return of a comet (Halley's comet) in 1758.
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Johann Palitzsch observes Halley's comet as predicted by Halley in 1705.
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The discovery of Uranus by William Herschel.
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Goddard launches the first liquid-fueled rocket.
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First radio telescope built by Grote Reber.
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Russia sends the first artificale satilite into space to have it's signals received back at earth.
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Russia puts the first animal into orbit (Laika) on Sputnik 2.
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Explorer 1 launched. This was the first U.S. satellite to orbit the Earth.
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USA has their first satelite in space (Explorer 1).
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Yuri A. Gagarin is launched in to space and orbits earth in 108 min.
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Alan Shepard is launched into a 15-minute suborbital flight and returned to earth in his ship.
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First non crash landings on the Moons by Luna 9 (Russian) and Surveyor I (U.S.A.)
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Neil Armstrong and Buzz Aldrin are the first humans to land on the moon.
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The U.S. launches Pioneer 10, the first satellite destined for Jupiter.
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The U.S. Viking probes land on Mars.
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Discovery of Uranus' rings.
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U.S. Voyager 1 sends back first images of Saturn and its rings to Earth.
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First Reusable manned spacecraft.
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First spacecraft beyond the orbit of Neptune
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Hubble Space Telescope put into orbit from space shuttle Discovery.
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First polar orbit around the Sun.
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US space shuttle docks onto Mir.
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First orbit of Jupiter.
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Mars Pathfinder lands on Mars.
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Construction begins on the International Space Station.
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First landing on an asteroid.
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Nuclear-powered NASA rover successfully lands on Mars to seek out life clues.