The event marked by the launch of the first artificial satellite, Sputnik, occurred on October 4, 1957. This Soviet satellite's successful launch signaled the beginning of the Space Age and the initiation of the Cold War space race. Sputnik's beeping radio signals, detectable by anyone with access to equipment, alarmed the United States and showcased Soviet technological prowess. The event led to significant investments in education, science, and technology within the U.S., culminating in initiatives like NASA. Sputnik demonstrated the vast potential of space exploration and catalyzed future innovations in technology and aerospace.