NASA engineers conducted a full-duration, 500-second test of RS-25 flight engine E2063 on the A-1 Test Stand at Stennis Space Center on Oct. 19, 2017. Once certified, the engine is scheduled to help power NASA’s new Space Launch System rocket on its Exploration Mission-2. The test was part of Founders Day Open House activities at Stennis. Credits: NASA/SSC #nasa #sls #orion #gsdo #testing #progress #rocket #rocketscience