Col. Jennifer Grant, 50th Space Wing commander, pictured in a tunnel that connects antennas to the main operations building at Thule Air Base, Greenland, Dec. 11, 2017. This station along with others like it support space operations by allowing Department of Defense, allies and civilian satellite operators to communicate with more than 175 satellites. ( Air Force photo by Tech. Sgt. David Salanitri)

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Keywords: afspc, air, crisswell, force, grant, greenland, pepper, radar, raymond, space, thule