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Rocket launch
A rocket launch is the takeoff phase of the flight of a rocket. Launches for orbital spaceflights, or launches into interplanetary space, are usually from a fixed location on the ground, but may also be from a floating platform (such as the Sea Launch vessel) or, potentially, from a superheavy An-225-class airplane
Launches of suborbital flights (including missile launches), can also be from:
*a missile silo
*a mobile launcher vehicle
*a submarine
*air launch:
*
*from a plane (e.g. Scaled Composites SpaceShipOne, Pegasus Rocket, X-15
*
*from a balloon (Rockoon, da Vinci Project (under development))
*a surface ship (Aegis Ballistic Missile Defense System)
*an inclined rail (e.g. rocket sled launch)
Launches not into space can also be from:
*the shoulder
A skyrocket is launched from some stand.
"Rocket launch technologies" generally refers to the entire set of systems needed to successfully launch a vehicle, not just the vehicle itself, but also the firing control systems, ground control station, launch pad, and tracking stations needed for a successful launch and/or recovery.
== Commercial launches ==
Commercial launch service providers include:
*Antrix Corporation (PSLV/GSLV)
*Arianespace (Ariane 5/Soyuz-2/Vega)
*China Aerospace Science and Technology Corporation (Long March)
*Eurockot Launch Services (Rockot)
*International Launch Services (Proton-M)
*ISC Kosmotras (Dnepr)
*Land Launch (Zenit-2SLB/Zenit-3SLB)
*Orbital ATK (Minotaur/Pegasus/Taurus)
*Sea Launch (Zenit-3SL)
*SpaceX (Falcon 1/Falcon 9)
*Starsem (Soyuz-FG/Soyuz-2)
*United Launch Alliance (Atlas V/Delta II/Delta IV)
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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