On October 4, 1957, the Soviet Union launched Sputnik 1, marking the beginning of the Space Race and igniting global anxiety, particularly in the United States, which is often referred to as the “Sputnik crisis.” This metal sphere, about 2 feet in diameter, was the first human-made object to orbit Earth and emitted radio beeps that were audible to amateur radio operators.
Although Sputnik 1 only orbited for 21 days before burning up in Earth’s atmosphere, it significantly impacted the geopolitical landscape. Weighing 184 pounds and taking just 98 minutes to orbit the Earth, its size and capabilities exceeded those of the United States’ initial Vanguard rocket payload, which had failed shortly before.
The launch spurred advancements, leading to the establishment of NASA and culminating in the Apollo 11 moon landing in 1969. A month after Sputnik 1’s launch, the Soviet Union sent Sputnik 2 into orbit, carrying the dog Laika, the first living creature in space, while the U.S. wouldn’t launch its first satellite, Explorer 1, until 1958.
For additional space history, consider exploring the full “On This Day In Space” archive and related videos.
