The U.S. Air Force Test Pilot School class 21-1 poses for a group photo at the 527th Space Aggressor Squadron at Schriever Air Force Base, Colorado, recently. TPS sent class 21-1 on a two-week tour around U.S. Space Force units as a part of its new Space Test Fundamentals course, which introduces a sharpened focus on space test and experimentation to enhance students’ space warfighting acumen. (U.S. Space Force photo by Senior Airman Andrew Bertain)