Jun. 10—A new commander of Space Launch Delta 30 will be welcomed Friday during a change-of-command ceremony at Vandenberg Space Force Base. Col. Robert A. Long will relieve Col. Anthony J. Mastalir as the person in charge of Space Launch Delta 30, the unit that controls the installation. The ceremony at 10 a.m. will be presided over by Lt. Gen. Stephen N. Whiting, commander of Space ...