Click an image to enlarge it and see its detail...

 

NASA and Aerojet Rocketdyne Test the RS-25 Engine for NASA's Space Launch System at Stennis Space Center
Liquid Oxygen (LOX)/Liquid Methane (LCH4) Rocket Engine
R-1E Engine
Atlas V Carries NASA's Solar Dynamics Observatory (SDO) Satellite
2017-An AR RL10 engine undergoes testing at NASA's test facility in West Palm Beach, Fla. The RL10 will be used as the basis for the upper stage engine for NASA's Orion, part of SLS.
2011 - SM-3 on 19th successful at-sea test intercept from USS Hopper (DDG 70). Photo: U.S. Navy via MDA