The company said its AVac engine delivers 1.2 times the thrust of the first-stage version and uses a taller vacuum-optimized ...

Space Exploration Technologies Corp. (SpaceX) announced today that it has completed the qualification testing program of its Merlin 1C next generation liquid fueled rocket booster engine for use in ...

Rolls-Royce and the U.S. Air Force validated the F130’s ability to meet performance requirements for the B-52 missions, getting closer to flight testing. Engine maker Rolls-Royce announced on Feb. 24, ...

Alliant Techsystems recently demonstrated a critical capability of its liquid oxygen (LOX)/Methane rocket engine by igniting it in a vacuum chamber. The successful ignition test was designed to ...

An error has occurred. Please try again. With a The Portland Press Herald subscription, you can gift 5 articles each month. It looks like you do not have any active ...

The medical community uses the term differential diagnosis to describe established test procedures to rule out reasons for an illness. Anyone who watches the television show House on the FOX network ...