St Elmo's Fire
Pilots of a KC-10, from the 78th Air Refueling Squadron, 514th Air Mobility Wing, experience a phenomenon called St. Elmo's fire while flying through a thundercloud overseas. St. Elmo's fire occurs when the electric field around the aircraft causes ionization of the air molecules, producing a glow and sparks. It is easily visible in low-light conditions (Air Force photo by Senior Airman Brian Kelly/released)
PHOTO BY:
Senior Airman Brian Kelly
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170322-F-ZZ999-002.JPG
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2.96 MB
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IMAGE IS PUBLIC DOMAIN
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