Space shuttle atlantis heading home before us army shoot down spy satellite 760696

Space Exploration Timeline

  • Sputnik 1

    Sputnik 1

    The Soviet satellite "Sputnik 1" is the first object sent into space and to successfully orbit the Earth.
  • Explorer 1

    Explorer 1

    The first United States satellite to orbit the Earth -Explorer 1- is launched.
  • NASA

    NASA

    NASA (National Aeronautics Space Administraion) is formed.
  • Yuri Gagarin

    Yuri Gagarin

    Russian citizen, Yuri Gagarin, is the first human in space.
  • Alan Shepard

    Alan Shepard

    Alan Shepard is the first United States citizen to go into space.
  • John Glenn

    John Glenn

    John Glenn is the first United States citizen to orbit the Earth.
  • First man to walk on the moon

    First man to walk on the moon

    Apollo 11 crew member Neil Armstrong is the first man to walk on the moon. His fellow Apollo astronaut crew member Edwin "Buzz" Aldrin is right behind him, becoming the second man to walk on the moon.
  • The first American space shuttle

    The first American space shuttle

    The first American space shuttle is launched. This marks the use of the first "re-usable" space craft.
  • The Challenger

    The Challenger

    The space shuttle challenger explodes shortly after takeoff.
  • The International Space Station

    The International Space Station

    Human habitation in the International Space Station begins.