Hanson said the experienced US Air Force pilot was flying a Beechcraft 350 C at about 20,000 feet in controlled air space at the time.
The Pentagon's UFO analysis office launched a UFO reporting service to the public after admitting to uncovering "some things" and calling the high number of suspicious activity either a foreign power or aliens.
About a minute after the initial sighting, the pilot reported back to air traffic control saying he saw an object on the aircraft's air-to-air system.
The leak comes just days after former UFO investigator Nick Pope told The U.S. Sun that Donald Trump needs to immediately set up a UFO czar.
LEAKED audio from a military pilot revealed he saw a "weird" flying object pass his under plane just 10 feet away.
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