This shows the evolution of Soviet space launch vehicles in the early years. From the left are the R-7 ICBM (Intercontinental Ballistic Missile), the Sputnik launcher, the Vostok launcher, and the Soyuz launcher. Publication information: Image under copyright by Peter Gorin. Image and caption from Challenge to Apollo: The Soviet Union and the Space Race, 1945- 1974 (NASA SP-2000-4408) by Asif A. Siddiqi. Please note that the image number assigned to this image is not an official NASA number. It is for GRIN database purposes only.