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Sputnik 1, Earth's First Artificial Satellite (Photos)

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Sputnik 1 on the Pad

Credit: NASA
The Soviet Union successfully launched Sputnik 1 satellite on October 4, 1957, surprising the world and starting the space race. The 183-pound (83-kilogram)…Read More »





spacecraft whipped around the Earth every 98 minutes, transmitting a series of beeps. Sputnik means "companion" in Russian.   Less «
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