180306-N-SS432-283 BARKING SANDS, Hawaii (March 6, 2018) Vice Adm. Mary M. Jackson commander of Navy Installations Command, visits Pacific Missile Range Facility’s (PMRF) child development center during her visit to PMRF. PMRF is the world’s largest instrumented multi-environmental range capable of supported surface, air and space operations simultaneously. There are over 1,100 square miles of instrumented underwater range and over 42,000 square miles of controlled space. (U.S. Navy photo by Mass Communication Specialist 2nd Class Omar Powell/ Released)