Crystals of hoar frost coat vegetation on a cold winter morning at Travis Air Force Base, Calif., Jan. 13, 2017. Frost forms on cold, clear nights when heat radiates out to the open sky faster than it can be replaced from nearby sources. ( Air Force photo/ Heide Couch)

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Size: 3600px × 2212px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

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