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Sputnik1, the first man-made object to orbit Earth, is launched by the USSR
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Explorer 1 is the first U.S. Satellite to orbit Earth
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Volstok 1 is launched by the USSR carring Cosmonaut Yuri Gargarin
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Project mercury carries Alan Shepard into space as the first U.S. Astronaut
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John Glenn is the first U.S. astronaut to orbit Earth
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Project Gemini launche the first U.S. two crew into space
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Apollo 8 leaves Earth's orbit and circles the moon
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Apollo 11 lands on the moon. Astronauts Neil Armstrong and Edwin "Buzz" Aldrin walk walk on the Moon.
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Project Skylab is launched by the U.S.
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Viking 2, launched by the U.S. lands on Mars
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The Hebble Space Telescope is launched
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First mission of the U.S. Space shuttle
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First evidence of a planet outside our solar system is obtained.
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Pathfinder land on mars. Color images of the surface and data on the rocks and soil are collected
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Construction begins on the Interntional Space Station