The Pentagon's former UFO chief has revealed his conclusion to one of the most famous UFO cases of the modern era: the Navy's baffling 'cube in a sphere' UFO was just a super high-tech drone.

US Navy fighter pilots had reported seeing these other-worldly craft near the Atlantic coast between 2014 and 2015, which nearly tore the wing off an F/A-18 Super Hornet that was flying with the USS Roosevelt during one incident.

Now Dr. Sean Kirkpatrick, the Pentagon's recently retired UFO chief, says that the objects were likely 'next generation,' 'spherical' drones that move 'very accurately.'

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