NASA takes to the skies of Europe
Adam Webster, NASA Armstrong flight research center mission director, monitors contrail emissions and flight patterns midflight Jan. 31, 2018. Webster aided in finding aircraft that were in the area so his pilots could request to monitor their emissions from behind. (U.S. Air Force photo by Airman 1st Class Milton Hamilton)

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Photo by: Airman 1st Class Milton Hamilton  |  VIRIN: 180131-F-VQ832-1029.JPG