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First man made rocket in space
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First U.S. citizen in space
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Soviet, First to orbit earth and return safely
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Explored venus's atomsphere
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First U.S. citzen to Orbit earth
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Photos of Jupiter, first to visit an outer planet
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Obtained the first quality images of Mercury
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Mapped the surface of Mars, Its lander searched for life on Mars
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Made by Soviet, Took a great picture of an object found on Venus
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Mapped the surface of Venus, had data on Venus's atmosphere