NASA - NASA's J-2X Engine Kicks Off 2012 With Powerpack Testing

NASA - NASA's J-2X Engine Kicks Off 2012 With Powerpack Testing: A new series of tests on the engine that will help carry humans to deep space will begin next week at NASA’s Stennis Space Center in southern Mississippi. The tests on the J-2X engine bring NASA one step closer to the first human-rated liquid oxygen and liquid hydrogen rocket engine to be developed in 40 years.