55 years!
Photo: The Soviet Union launched Sputnik 1 on Oct. 4, 1957. The world’s first artificial satellite, Sputnik 1 was a 183-pound beach ball-sized sphere that took about 98 minutes to orbit Earth. JPL/NASA
55 years!
Photo: The Soviet Union launched Sputnik 1 on Oct. 4, 1957. The world’s first artificial satellite, Sputnik 1 was a 183-pound beach ball-sized sphere that took about 98 minutes to orbit Earth. JPL/NASA