PROMONTORY, Utah, May 31, 2012 /PRNewswire/ -- ATK (NYSE: ATK) and United Launch Alliance (ULA) conducted a successful cold-temperature ground test today of a Graphite Epoxy Motor (GEM-60)

MOJAVE, Calif., May 24, 2012 /PRNewswire/ -- XCOR announced today that it has achieved a key technical milestone with its flight weight rocket piston pump hardware.

Testing has begun on an engine that could make it possible for a plane to travel into space, travel at five times the speed of sound, and make it possible to reach any destination on the planet in no more than four hours.

NIAGARA FALLS, NY, March 26, 2012 /PRNewswire/ -- AMPAC-ISP CORP. (AMPAC-ISP or ISP), American Pacific Corporation's (NASDAQ®: APFC) wholly-owned in-space propulsion subsidiary, reported

NIAGARA FALLS, NY, Nov.