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Alan Sheppard completed the first manned spaceflight by an American.
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Ed White becomes the first American man to do an EVA (spacewalk).
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Gemini VI and VII meet in orbit to complete the first space rendezvous and docking in history.
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After the success of the previous programs, NASA is blinded by victory and makes a lot of amateur mistakes which lead to the deaths of three astronauts. On the other hand, this event is very important because it is one of the reasons America got to the moon.
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Apollo 8 brings back a famously influential photograph called "Earthrise" from the moon.
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Neil Armstrong and Buzz Aldrin put the first ever footprints on the moon while Micheal Collins orbited around them during the Apollo 11 mission.
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In the Apollo 13 service module an oxygen tank burst and damaged several support systems. Mission control guided the crew while they used the gravity of the moon to get them back home safely.
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Apollo 17, the final Apollo mission, lands safely back on Earth.
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This was the first international human space flight (between the U.S. and Soviet Union).
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The Viking 1 mission sent a spacecraft into orbit around Mars and eventually dispatched the first successful lander on the surface of the planet.
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The first Space Shuttle (Columbia) lifted of from Kennedy Space Center with Robert L. Crippen (pilot) and John W. Young (commander).
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Sally Ride became the first American woman in space when she flew aboard the Challenger space shuttle in 1983.
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Guion Bluford became the first African American in space when he rode aboard the STS-8 Challenger. He later passed during the Challenger explosion in 1986.
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When the Hubble was launched it was one of the greatest advances in humanity. Its position above the Earth's atmosphere makes it more ideal for taking pictures than telescopes on the ground.
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The rover Pathfinder along with mini-rover Sojourner head on their year long flight to Mars.
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Traveling in a Soyuz rocket Expedition 1 becomes the first crew to ever board the International Space Station. The crew consisted of Soyuz Commander Yuri Gidzenko, American Commander Bill Sheppard, and Soyuz Flight Engineer Sergei Krikalev (left to right).
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After a seven year journey, the Cassini Probe has made it to Saturn. The probe will spend 4 years photographing the planet.
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The Huygens probe lands on one of Saturn's moons, Titan. It had been carried by the probe Cassini which is now in orbit around Saturn.
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The Kepler spacecraft is sent on a hunt to search for extra-solar planets. The spacecraft uses a technique called the "transit" method to help find the planets.
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The space shuttle Atlantis heads on NASA's last Space Shuttle mission, lasting for 12 days.
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After more than nine years of travel, the New Horizons spacecraft arrived at Pluto and revealed that Pluto is in fact 50 miles larger than previously thought.
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After orbiting around Saturn for more than 13 years collecting data through photos, the Cassini probe is directed to crash into Saturn, thus ending its mission.
