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National UFO Reporting Center Sighting Report
Occurred : 12/10/2017 12:00 (Entered as : 12/10/17 12:00)
Reported: 12/16/2017 11:37:23 AM 11:37
Posted: 12/21/2017
Location: Utah (above; in flight), UT
Shape: Changing
Duration: 3-4 minutes
Characteristics: The object left a trail, There was an aura or haze around the object, There were aircraft in the vicinity or aircraft chasing the object
Dark metallic almond shaped aircraft changed shape

My husband and I were aboard a commercial aircraft flying from Denver to Las Vegas. About an hour into the flight, we noticed a dark contrail in the distance. As we were watching it, the dark linear shape stopped and changed shape into a vertical almond shape. At this point we both noted it had a metallic appearance with a light grey line through the center of the object. After about 15 seconds the object returned to a horizontal position and moved slowly in a northeast direction. We were able to see it move slowly away over the next few minutes. We asked the pilot and copilot if they saw anything as we were exiting the plane and they both said no.