Space Launch System (SLS) solid rocket booster prime contractor Orbital ATK recently completed work at its Utah facilities on the booster nozzles for Exploration Mission-1 (EM-1), the first flight of SLS and the Orion spacecraft. SLS, the world’s most powerful rocket, and Orion will take humans on deep space missions, and the boosters provide most of the power to get the spacecraft off the ground. Here, technicians are putting the finishing touches on the exit cones’ paint, including photogrammetric markings that will help engineers assess clearances between the boosters and ground structures during the initial moments after liftoff. Credit: Orbital ATK #NASA #SLS #rocketscience #photogrammetric #orbitalatk #EM1