joint — double expansion joint expansion joint gimbal expansion joint hinged expansion joint internally guided expansion joint pressure balanced expansion joint single expansion joint swing expansion joint universal expansion joint … Mechanics glossary
International Space Station — ISS redirects here. For other uses, see ISS (disambiguation). International Space Station … Wikipedia
Pegasus rocket — Pegasus rockets are the winged space booster vehicles used in an expendable launch system developed by Orbital Sciences Corporation (Orbital). Three main stages burning solid propellant provide most thrust. The rocket is carried aloft below… … Wikipedia
Moon landing — For other uses, see Moon landing (disambiguation). Still frame from the video transmission of Neil Armstrong stepping onto the surface of the Moon at 02:56 UTC on 21 July 1969. An estimated 500 million people worldwide watched this event,… … Wikipedia
Bristol Siddeley Gamma — The Gamma was a family of rocket engines used in British rocketry, including the Black Knight and Black Arrow launch vehicles. They burned kerosene fuel and hydrogen peroxide. The family was based around a common combustion chamber design, used… … Wikipedia