NASA NASA Concludes Summer of Testing with Fifth Flight Controller Hot Fire

NASA engineers closed a summer of successful hot fire testing Aug. 30 for flight controllers on RS-25 engines that will help power the new Space Launch System (SLS) rocket being built to carry astronauts to deep-space destinations, including Mars. via NASA http://www.nasa.gov/image-feature/nasa-concludes-summer-of-testing-with-fifth-flight-controller-hot-fire