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The booster for the world's most powerful rocket, NASA's Space Launch System (SLS), which will power the agency’s astronauts on the journey to Mars, will fire up for a major ground test at 10:05 a.m. EDT (8:05 a.m. MDT) Tuesday, June 28, at Orbital ATK Propulsion Systems’ test facilities in Promontory, Utah.
This is the last time the booster will be fired in a test environment before the first test flight of SLS with NASA's Orion spacecraft, known as Exploration Mission-1 (EM-1), in late 2018.
NASA Television will air a NASA Social event that provides the latest updates and background on SLS and Exploration Mission-1 at 3:30 p.m. Monday, June 27, and will air live coverage of the booster test June 28 beginning at 9:30 a.m.