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The Soviet Union's Sputnik 1 was launched on October 4, 1957. This was the first spacecraft launched.
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The first man, known as Yuri Gagarin, entered space and traveled around Earth at the speed of 17,025 mph.
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President John F. Kennedy began a dramatic expansion for NASA and committed the nation to the goal of landing a man on the Moon by the end of the decade.
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Neil Armstrong and Edwin Aldrin were the first of 12 humans who walked on the Moon.
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the Mars Pathfinder was launched into space. The Mars Pathfinder was the first rover ever built and ever sent to Mars.
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The Mars Pathfinder finally landed on Mars after 7 months of flying through space. The Mars Pathfinder was only supposed to last a couple days but ended up lasting 9 months. this was a big success for NASA so they continued their success with the Curiosity rover.
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On November 26, 2011 the car sized rover named Curiosity was launched into space.
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Curiosity landed on Mars. This rover still is active to this day.