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The first artifical satellite in space.
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Alan B. Shepard became the first U.S. citizen in space.
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Yuri A. Gagarin became the first human in Space.
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John Glenn became the first U.S. citizen to orbit earth.
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Surveyor landed gently on the moon's surface, indicating the moon's surface could support spacecraft and humans.
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Apollo 11 landed on the moon's surface, Neil Armstrong was the frost person to step foot on the moon.
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