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  Galileo built a refracting telescope and looked at space for the first time. He discovered many things, for example that the moon had craters.
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  Isaac Newton piblished 3 volumes about Newton's laws of motion, the universal law of gravitation, and Kepler's laws for the motion of planets.
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  Goodard got patents for 2 rockets. One was multi-staged and the other had gasoline and liquid nitrogous oxide.
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  The Soviet Union establishes the Society for Studies of Interplanetary Travel.
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  The Soviet Union launches Sputnik 1, the first artificial satellite to be launched into space.
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  The first American satillite, Explorer 1 went into space.
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  The National Aeronautics and Space Administration (NASA)is established
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  The Russian Spacecraft Luna 1 is launched into space and flung into solar orbit, being the first man-made object to do so.
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  Yuri A. Gargarin is launched into space by the Soviet Union, making him the first man in space.
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  Neil Armstrong becomes the first man to walk on the moon. Michael Collins and Buzz Aldrin were also on the space craft, Apollo 11.
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  Columbia was launched into space, making it the first space shuttle to be launched. When Columbia reentered Earth's atmosphere it fell apart and all 7 crew members were killed.
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  Sally Ride became the first U.S. woman to go into space on Challenger's second mission.
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  Challenger explodes seconds after lift off stunning everyone. All 7 crew members were killed, including Christa McAuliffe who was supposed to be the first woman in space.
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  Hubble entered space. Hubble became the first space telescope in space. They did repairs on it later on.
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  The International Space Station was launched into space. 16 countries were involved in this space station.