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It was the first artificial Earth satellite. It was launched into Earth orbit by the Soviet Union as part of the Soviet space program.
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The first animal to make an orbital spaceflight around the Earth was a dog named Laika. Laika was chosen because the Soviet scientists believed a homeless animal would be better equipped to endure the cold, hunger and harsh conditions of space travel.
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Explorer 1 was the first satellite launched by the United States. Was an important moment for the country, as the Space Race with the Soviet Union was just beginning
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The National Aeronautics and Space Administration was created from the National Advisory Committee for Aeronautics, and other organizations. NASA was created in response to the Soviet Union's launch of its first satellite, Sputnik I.
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A chimpanzee called Ham was launched on a rocket from Cape Canaveral in the United States, and returned to Earth alive. In this, he became the first hominin in space.
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Gagarin was launched into orbit by a Vostok rocket and became the first man in space. Gagarin completed a single orbit around the Earth
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Alan B. Shepard became the first American in space during a suborbital flight aboard his Mercury capsule named Freedom 7
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John F. Kennedy declared that by the end of the decade, the United States would land astronauts on the Moon. President Kennedy's decision to go to the Moon and the space program were motivated by the Cold War tensions between the United States and the Soviet Union.
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John Glenn became the first American to orbit the Earth. Glenn orbited the globe 3 times in 4 hours and 56 mins reaching speeds over 17,000 miles per hour.
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The first EVA was performed by a Soviet cosmonaut Alexei Leonov, who spent 12 minutes and 9 seconds outside the Voskhod 2 spacecraft.
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The first American spacewalk was performed by Ed White from the second crewed Gemini flight, Gemini IV, for 21 minutes.
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The original crew for Gemini 9, command pilot Elliot See and pilot Charles Bassett, were killed in a crash while flying a T-38 jet trainer
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The first docking of two spacecraft was achieved when Gemini 8, under the command of Neil Armstrong, rendezvoused and docked with an uncrewed Agena Target Vehicle.
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Apollo 1 was expected to fly to Earth orbit with astronauts Gus Grissom, Roger Chaffee and Ed White on board. During a test on the launch pad, a fire erupted and killed all three astronauts.