From left, Haley Goldston and Dr. Phil Kreth, with the University of Tennessee Space Institute, set up equipment in SL-2, a sea level turbine engine test cell at Arnold Air Force Base, Tenn., April 27, 2022, to observe and record shadowgraph data of the air flow from various nozzles.

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Photo credit: © Operation 2022 / Alamy / Afripics
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Keywords: 717th, squadron, test