Sputnik 1

Image
On 4 October 1957, the USSR sends the first ever artificial satellite, Sputnik 1, into orbit.

Source and copyright

Source: Sputnik I exhibit in the Missile & Space Gallery at the National Museum of the United States Air Force [online]. U.S. Air Force. Colour.
National Museum of the United States Air Force. Reference: 070308-F-1234S-001. Available at: http://www.nationalmuseum.af.mil/shared/media/photodb/photos/070308-F-1234S-001.jpg.

Copyright: (c) National Museum of the US Air Force

Sputnik 1