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The first satellite in space was the Soviet satellite, Sputnik.
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The first animal in space was a stray dog from Russia, named Laika. She died a few hours after being sent into orbit.
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The Explorer 1 was the first successful American satellite launch. This marked the beginning of the U.S. Space Age.
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President Eisenhower signed the National Aeronautics and Space Act of 1958 establishing NASA.
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Ham the Chimp flew a suborbital flight on the Mercury-Redstone 2 mission, part of the U.S. space program's Project Mercury.
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Yuri Alekseyevich Gagarin was a Soviet pilot who became the first human to journey into outer space. Travelling in the Vostok 1 capsule, Gagarin completed one orbit of 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 H. Glenn became the first American to orbit the Earth during the three-orbit Mercury-Atlas 6 mission, aboard the spacecraft he named Friendship 7.
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Officially titled the Address at Rice University, was a speech by United States President John F. Kennedy to boost public support for his proposal to land a man on the Moon before 1970.
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The first EVA was performed by Soviet cosmonaut Alexei Leonov, who spent 12 minutes and 9 seconds outside the Voskhod 2 spacecraft.
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US astronaut Edward White was the first American to perform an “extra-vehicular activity” (EVA), or spacewalk.
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Fifty years ago, Gemini VI and VII met for the first rendezvous in space. This was not NASA's original plan.
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The original crew for Gemini 9, Elliot See and Charles Bassett, were killed in a crash, while flying a T-38 jet trainer to the McDonnell Aircraft plant in Missouri to inspect their spacecraft.
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The first docking between two spacecraft occurred when the Gemini VIII capsule, piloted by Neil Armstrong and David Scott, docked with an unmanned spacecraft called the Agena Target Vehicle.
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Gemini XI: 12-15 September 1966, docking and maneuvering with Agena, setting an altitude record.
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The Apollo program changed forever, when a flash fire swept through the Apollo 1 command module during a launch rehearsal test. Despite the best efforts of the ground crew, the three men inside died.
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Apollo 7 was the first three-person American crew to launch space and it was the first crewed Apollo mission. All three astronauts caught a cold during the mission.
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Apollo 8 was the first crewed spacecraft to leave low Earth orbit and the first human spaceflight to reach the Moon. The crew orbited the Moon ten times without landing, and then departed safely back to Earth.
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Apollo 9 crew completes first command and lunar module docking in space. The Apollo 9 command and service module (CSM), along with the lunar module (LM), were on a path to complete the very first lunar module rendezvous and docking in Earth’s orbit.
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Apollo 11, U.S. spaceflight during which commander Neil Armstrong and pilot Edwin (“Buzz”) Aldrin, Jr., became the first people to land on the Moon and walk the lunar surface.
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Aldrin set foot on the Moon at 03:15:16 on July 21, 1969. Buzz Aldrin was the first man to pee on the moon.