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1st artifical satellite put in space by the Ussr. The U.S found the Ussr had the technology to deliver a nuclear weapon via the R-7
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The Soviet wanted to see if they could send people into sapce. The spaceship carried a dog named Laika
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The Soviet wanted to see if the 3rd Sputnik would be a better sputnik out of all the others.
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It was the first man made object to orbit the Earth.
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It impacts the moon on becoming the first man-made object to do so.
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It orbits the moon and photographs 70 percent of its surface.
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President Kennedy challenges the nation to go to the moon before the decade ends.
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To study the Earth and see how it works.
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It carried a biological payload (including two turtles) around the moon and returned to Earth six days later.
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Touching down just 600 ft from the Surveyor 3.