The Antares Rocket - NASA's Less Famous Ride To The Space Station

The Antares rocket is not the best known rocket, except when it exploded, then everyone noticed. The Antares grew out of the same commercial orbital services program that launched the Falcon 9. The design used a Ukrainian built first stage with Russian engines, and a solid upper stage to launch the Cygnus cargo vehicle. The Engines themselves have a story worth telling.
This collection of existing technologies meant it was built quickly and is considered a low cost option compared to Atlas.
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