The most powerful Soviet booster rocket, first launched on 15 May 1987. Used to launch the Soviet space shuttle Buran in 1968, the SL-17 Energiya booster was capable, with the aid of strap-on boosters, of launching payloads of up to 190 tonnes into Earth orbit. It stood 60 m tall and was the first Soviet rocket to use liquid-hydrogen fuel.
http://www.astronautix.com/lvfam/energia.htm Illustrated guide to the Energiya family of boosters and launch vehicles. There is detailed historical background as well as technical information.
Subjects: Astronomy and Astrophysics.