Roman Mission Dress Rehearsal, Hangar X and AE

Personnel, including engineers, technicians, and mission managers, with the Launch Services Program at NASA’s Kennedy Space Center and NASA’s Nancy Grace Roman Space Telescope participate in a mission dress rehearsal on Thursday, Aug. 20, 2026, inside Hangar AE at Cape Canaveral Space Force Station in Florida. Teams ran through a full end-to-end simulation of every major step they will experience on launch day except liftoff, including powering up the spacecraft, fueling the rocket, conducting weather briefings, and other operations.