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The Soviet satellite "sputnik 1" is the first object sent into space and to succesfully orbit the Earth.
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The first "Earthling", a Soviet dog named Laika, is successfully sent into space.
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The first United States satellite to orbit the Earth-"Explorer 1"- launched.
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NASA (National Aeronautics and Space Administration) is formed.
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Soviet cosmonaut Yuri Gagarin becomes the first person in space. (he orbits Earth)
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Alan Shepard becomes the first United States citizen in space
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Astronaut John Glenn becomes the first United States citzens to orbit the Earth.
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Apollo 11 crew member Neil Armstrong is the first man to walk on the moon. His fellow ccrew member Edwin "Buzz" Aldrin is right behind him the second man to walk on the moon.
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Voyager II, the first space probe to fly by the four gas giant planets- Jupiter, Saturn, Uranus, and Neptune- is launched.
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The first American space shuttle is launched. This is the first "re-usable" space craft in history.
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The space shuttle Challenger explodes sortly after take-off, killing all of its crew members including the first teacher in space, Christa McAuliffe.
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The Hubble Telescope is launched into orbit around the Earth.
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The un-manned American space probe "Pathfinder" lands on Maars and begins its successful exploration of the planet.
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Human habitation in the International Space Station begins.
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The space shuttle Columbia explodes upon re-entry into the Earth's atmosphere.
