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Galileo Galilei spotted craters on the moon for the first time while looking through a telescope
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Robert H. Goddard launched the first rocket to have liquid fuel
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The Soviet Union launched their first rocket on their own.
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First research flight launched by the US captured by the V-2 space rocket
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Sputnik was launched into obit by the USSR. Sputnik was the first artificial satellite to orbit the world
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Soviet cosmonaut Yuri Gargarin becomes the first man in space
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John Gleen traveled in the Friendship 7 around the world.
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NASA's mariner 4 conducts the first flyby of Mars
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Neil Armstrong becomes the first man to walk on the moon along with pilot Buzz Aldrin
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Russia's Salyut 1, the worlds first space station was launched from and unmanned rocket.
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America's Voyagers 1 and 2 deep space probes are launched
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The US space shuttle era begins with the flight of Columbia. John Young and Bob Crippen were the crew on this mission.
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After about 73 seconds after takeoff, the Challeger space shuttle started breaking away and disintegrating, the problem found to be an O-ring, killing all 7 crew members (one being the first astronaut in space). Sharon Christa McAuliffe, Gregory Jarvis, Judith A. Resnik, Francis R. (Dick) Scobee, Ronald E. McNair, Mike J. Smith, and Ellison S. Onizuka were aboard this trip. Although sad, it helped NASA focus on the safety improvements on the rockets that needed to be done.
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The Hubble Space Telescope is launched into orbit by the space shuttle Discovery
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The US Mars Rover named Sojourner was launched into space and wheeled mar's surface to explore the geology
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The International Space Station was launched. This is a place for astronauts to stay long-term in space to do research. It was also a joint project between the USA, Russia, Japan, Canada, several European countries, and Brazil
