Get Ready for the Final, Full-Scale SLS Booster Test

The largest, most powerful rocket booster built for flight will fire up for a major ground test June 28 at Orbital ATK's test facilities in Promontory, Utah. This is the last, full-scale qualification test for the booster before the first, uncrewed flight of NASA's new rocket, the Space Launch System, with the Orion spacecraft in 2018.