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Sputnik was the first satellite put into the Earths orbit it was Sent by the Soviet Union
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The USSR sent Sputnik 2 with a dog named Laika into orbit they couldnt get her back and Laika died
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Explorer 1 was the first American satellite to reach orbit it carried scientific equipment that lead to the discovery of the Van Allen radiation belt.
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Explorer 2 is launched but it failed to reach orbit
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Sputnik 3 is launched into orbit from Baikonur cosmodrome
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Luna 1 is launched by the USSR it is the first man made object to orbit the Sun
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Luna 3 orbits the Moon and photographs 70% of its surface
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Tiros 1, the first successful weather satellite, is launched
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Alan B. Shepard becomes the first American in space.
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NASA announces the Gemini Program
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John Glenn orbits the Earth three times
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NASA selects its second group of astronauts
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Walter Schirra orbits the Earth six times
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Cosmonaut Valentia Tereshkova becomes the first woman in space
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Apollo 11 returns to earth
