In 1957, the Soviet Union expanded the Cold War into space with the launching of the satellite known as:

In 1957, the Soviet Union expanded the Cold War into space by launching the satellite known as Sputnik 1. This event marked the beginning of the space age and was significant as it represented a major technological achievement for the Soviet Union. Sputnik 1 was the first artificial Earth satellite, and its launch on October 4, 1957, triggered the space race between the United States and the Soviet Union. The satellite transmitted radio pulses that could be received on Earth, providing valuable data for scientific research and contributing to the development of future space technologies. This event not only escalated tensions during the Cold War but also paved the way for advancements in satellite technology, space exploration, and communications.