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Paper mathematically demonstrates liftoff with liquid fuels

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Goddard establishes that it is possible to send a rocket to the Moon

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First Successful launch of a V-2 rocket

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Launch of the Sputnik I

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Launch of the Explorer 1

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Luna 3 probe flies past the Moon

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Water satelite TIROS 1 launched

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Yuri Gagarin becomes the first human in space

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Alan B. Shepard, Jr. becomes the second human in space

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John Glenn is the first American to circle Earth

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Syncom communications satellites launched

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Edward H. White, Jr. is the first American to perform a spacewalk

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Apollo 8 flight to the Moon views Earth from lunar orbit.

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Neil Armstrong becomes the first person to walk on the Moon

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The First space station is built, Salyut 1

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Pioneer 10 sent to the outer solar system

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NASA launches two Mars space probes

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Voyager I and Voyager 2 are launched

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Space Shuttle Columbia is launched

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Space Shuttle Challenger destroyed during launch

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Hubble Space Telescope launched

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The first two modules of the International Space Station are joined together on December 5

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Expedition One of the International Space Station is launched and prepares for boarding