TacSat-3: An American success story

Lt. Col. Mike Manor, 1st Space Operations Squadron commander, reveals a customized memorial of Tactical Satellite 3 during a retirement ceremony for the satellite here April 13. Manor described how TacSat-3 served as a pioneer for new satellites, systems and programs, such as Operationally Responsive Space 1, during its relatively short operational lifespan. (U.S. Air Force photo/Bill Evans)

Schriever takes on active-shooter scenario during exercise

Emergency response personnel evaluate a simulated victim during an active-shooter exercise April 17 at Schriever Air Force Base, Colo. The exercise evaluated the base’s urgency, response and procedures to an active-shooter scenario. (U.S. Air Force photo/Bill Evans)

Schriever takes on active-shooter scenario during exercise

A 50th Security Forces Squadron member checks a victim during an active-shooter exercise April 17 here. The exercise is designed to evaluate personnel's response to an active-shooter scenario. (U.S. Air Force photo/Bill Evans)

Schriever takes on active-shooter scenario during exercise

Members of the 50th Security Forces Squadron participate in an active-shooter exercise April 17 here. The exercise was a coordinated effort between the 50th Space Wing and the 460th Space Wing at Buckley Air Force Base, Colo. (U.S. Air Force photo/Bill Evans)

Schriever practices emergency response

Building 210 members sit in the lowest, most central part of the building during a tornado drill March 20. Schriever members practiced emergency response during a half-day Emergency Management Stand Down. (U.S. Air Force photo/2nd Lt. Marie Denson)

Schriever practices emergency response

Col. James Ross, 50th Space Wing commander, and Capt. John Galer, 50th Space Wing executive officer, seal a door in a Bldg. 210 shelter-in-place area March 20. Wing members participated in an emergency preparedness exercise throughout the half-day stand down. (U.S. Air Force photo/2nd Lt. Marie Denson)