A modified NASA C-130 Hercules research aircraft flies over Eielson Air Force Base, Alaska, Sept. 17, 2014. NASA chose Eielson as the launch point for research of glaciers and sea ice in Alaska and Canada because of the support services available for the research team and its equipment. (U.S. Air Force photo by Tech. Sgt. Joseph Swafford/Released)
Tech. Sgt. Joseph Swafford
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