A thin plume of orange rising into the Soviet sky on October 4, 1957, carried aloft humankind's first artificial satellite. A 22-inch, 184-pound, beeping sphere, Sputnik ("Fellow Traveler") marked the beginning of a new chapter in...

Sputnik Launched October 4, 1957 Decommissioned March 25, 1961 At the height of the Cold War the Soviet Union initiated a space program named Sputnik, which made such historic achievements as putting the first satellite in Earth’s orbit; it...

Sputnik is the name given to a series of scientific research satellites launched by the Soviet Union during the period from 1957 to 1961. The satellites ranged in size and capability from the 83.6-kilogram (184.3-pound) Sputnik 1, which served only as...

The Sputnik program was a series of robotic spacecraft missions launched by the Soviet Union. The first of these, Sputnik 1, launched the first man-made object to orbit the Earth. That launch took place on October 4, 1957 as part of the International...