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The Launch of Sputnik I triggered the US to launch its own satellites into space and begin space exploration. It also marked the beginning of the competition between the US and the Soviet Union to have dominance in space.
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The Launch of Explorer I started the competition between the Soviets and the US because it was the first American satellite to reach orbit.
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National Aeronautics and Space Administration or NASA was launched and the US have a better chance of launching a human into space.
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John F. Kennedy is elected president and he encourages the United States to beat the Soviet Union in the Space Race by establishing an idea of landing on the moon.
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Yuri Gagarin is not only the first man but the first Russian man to go to space. This sparks an idea on the US.
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The Gemini Program helped NASA get ready for the Apollo moon landings. They flew between the Mercury and Apollo Programs.
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A fire killed the Apollo 1 astronauts and this really pushed NASA to do more research and redesign the Apollo spacecraft.
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The crew of Apollo 7 starting their 10 day mission to study the new space craft is a very big step for NASA after the Apollo 1 fire that killed 3 astronauts.
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The three men that were on the Apollo 8 mission were important because they were the first humans to go to the moon and they were Americans.
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Neil Armstrong and Edwin Aldrin walking on the moon is important because it means they have won the Space Race. They were the first men to walk on the moon.