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