J-2X Rocket Engine: Artist Concept (NASA, 11/08/10)
Artist concept of NASA's J-2X rocket engine, dated November 2010.
NASA's J-2X is an efficient and versatile rocket engine, offering the ideal thrust and performance characteristics to power the upper stage of a heavy-lift launch vehicle. Hardware for the first engine is being assembled at Pratt & Whitney Rocketdyne and at numerous subcontractor locations across the country, with testing anticipated at NASA's Stennis Space Center in early 2011.
Image credit: NASA
There's a Flickr photoset about the J-2X egnine development, if you'd like to know more: www.flickr.com/photos/28634332@N05/sets/72157625345364038/