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Ths was the start to the Space Race. It made the us government worry they are going to launch missles and use the sattalitte to spy on the us.
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Sputnik 2 carried a small dog named lakia. This was a test to see if mamual could survive in space.From this experiment/launch the soviets found out that mamuals can survive in space as long as they are provided with food,water,protection from space elements, and are provided with oxigen.
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It was the U.S.A's first sattilite in space.
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Luna 1 was the very first man made object to orbit the sun.
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Luna 2 was the first man made object to impact the moon
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Luna 3 took pictures of 70% of the moon.
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Explorer XIV was the first camers equiped spy sattilte.
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The soviets lanched the first human into space and he survived and made it back proving humans can survive in space.
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He was the first amercan to expirence A trip to space. This gave the americans a person who expirenced space flight and could explain the expirence and tell them how to make things better.
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They were the very first humans in the moon. They also collected Mon rocks to bring back to Earth.