Attendees stand for the official party’s arrival to the 593rd Test and Evaluation Squadron, Space Delta 12, activation ceremony April 20, 2026, at Edwards Air Force Base, California. The unit’s activation formalizes a mission that has grown through the Space Force’s partnership with the U.S. Air Force Test Pilot School at Edwards AFB. (U.S. Air Force photo by Daniel Kelley, 412th Test Wing Public Affairs)