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also called rocket motors, have been used since the 1200s to launch fireworks and small millitary rockets
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A liquid-fuel rocket is a rocket engine that uses liquid propellants. It was invented in 1926 by Robert Goddard
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German researchers designed and built the V-2, one of the first modern rockets, under the leadership of Wernher Von Braun
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Less than a month after Sputnik 1, a dog was lauched aboard satellite Sputnik 2, becoming the first living creature to orbit the earth
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The first artificial object to orbit the earth
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United States fist satellite
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Yuri Gagarin became the first person to travel in space in the Vostok 1 spacecraft
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Alan Shepard became America's first person in space in the Freedom 7
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John Glenn became the fisrt american to orbit the earth in Friendship 7 mercury spacecraft
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Valentina Tereshkova became the first woman to fly in space in Vostock 6
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land a spacecraft on the moon, Columbia orbited the moon and Neil Armstrong became the first human to set foot on the moon
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The United States launched its first space station, Skylab
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Was a new type of spacecraft and the first reusable spacecraft
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The challenger was detroyed by an accident shortly after launch
