NASA successfully tests main Space Launch System main engine

http://www.extremetech.com/wp-content/uploads/2016/03/rs25-640x353.jpg 640w, http://www.extremetech.com/wp-content/uploads/2016/03/rs25.jpg 672w" sizes="(max-width: 300px) 100vw, 300px" />The rocket engine that will take humanity into deep space has been test-fired for 500 seconds.