The Soviet Union successfully launched Sputnik on October 4, 1957. This event marked a significant milestone in space exploration as Sputnik became the first artificial satellite to orbit the Earth. Its launch initiated the Space Race between the Soviet Union and the United States, leading to advancements in aerospace technology and satellite communication. The successful deployment of Sputnik also had geopolitical implications, showcasing Soviet technological prowess and prompting the U.S. government to invest heavily in science and education. The event changed perceptions of space and science, making space exploration a pivotal area of competition between superpowers.