Pilots over southern Arizona last month reported a mystery object flying above their aircraft in a flight-control recording released by the Federal Aviation Administration.
"Was anybody above us that passed us like 30 seconds ago?" a Phoenix Air Group pilot flying a Learjet at 37,000 feet asked an air traffic controller at about 3:30 p.m. on February 24.
(Click the video above for Twilight Zone-ish radio exchange.)
"Negative," said an official with the Federal Aviation Administration's Albuquerque Center.
"OK," the pilot responded a few seconds later. "Somethin' did."
A few minutes later, an American Airlines Airbus pilot reported seeing the same thing at roughly 40,000 feet over the Sonoran Desert between Picacho and Mammoth.
No one knew what it was.
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