Sparks fly as a hydrogen burn-off igniter test is conducted May 5 at the Redstone Test Center on Redstone Arsenal in Huntsville, Alabama. The igniters will be used for NASA's Space Launch System to burn off any free hydrogen that can potentially collect at the aft of the rocket about 10 seconds before liftoff. Just another awesome day building deep space exploration systems to further us on our journey to Mars! Credit: Redstone Test Center #nasa #progress #engineering #technology #rocketscience #redstone #hardwaretesting #spaceonearth #sls #slsfiredup #huntsville #alabama nasa nasa_marshall #journeytomars