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first artificial satellite launched in space
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first u.s. program to start the race for the moon
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became first u.s. citizen in space
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became first human in space,orbited earth and returened safetly
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a space probe sent to learn infomation about venus
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first u.s. citizen to orbit the earth
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the next step i n reaching the moon.teams of two astronauts in the same gemini spacecraft orbited earth
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the surveyor landed gently on the moons surface
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the final stage of the u.s. program to reach the moon
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landed on the moons surface.neil armstrong first human to set foot on the moon
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first man on the moon
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a space probe launched to search jupiter
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a space probe to search mars
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a new space probe to search venus