Members of the “red crew” perform work at the mobile launcher during the launch countdown for Artemis I at NASA’s Kennedy Space Center in Florida on Nov. 15, 2022. The team of technicians are part of the personnel specially trained to conduct operations at the launch pad during cryogenic loading operations. Prior to the launch of Artemis I, the red crew entered the zero deck, or base, of the mobile launcher and tightened several bolts to troubleshoot a valve used to replenish the core stage with liquid hydrogen which showed a leak with readings above limits. NASA has historically sent teams to the pad to conduct inspections during active launch operations as needed. Artemis I launched successfully at 1:47 a.m. on Nov. 16, from Kennedy’s Launch Pad 39B.