In 1957, the Soviet Union launched Sputnik 1, the first artificial satellite to orbit Earth. About the size of a beach ball, Sputnik sent out radio signals that could be heard around the world. Its launch shocked the United States and began the Space Race—a competition to explore space. This video tells the story of how Sputnik changed history, inspired new inventions, and led to humans traveling to space. It marked the moment when people realized our future could reach beyond the stars.

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