On Oct. 4, 1957, the former Soviet Union successfully launched Sputnik 1 the first human-made object to enter Earth orbit. See photos from the historic mission.

Sputnik 1 was launched on October 4, 1957, at 1928 UTC from the Baikonur Cosmodrome in present-day Kazakhstan using the R-7 ...

It was the beginning of the space age: the launch by the Soviet Union on 4 October 1957 of Sputnik 1, the world’s first artificial satellite. With the Soviet Union and the US locked in an ...

On Oct. 4, 1957, the former Soviet Union successfully launched Sputnik 1 the first human-made object to enter Earth orbit. See photos from the historic mission.