Government drones, errant weather balloons, experimental spy planes, rocket launches and exhaust plumes are just some of the aerial phenomena that have generated U.F.O. sightings. Whatever...
Produced by Nick Donofrio, Gabriel Gianordoli, Maridelis Morales Rosado, Andrew Sondern and Rebecca Thomas. Images: Pan Plates AS12-47-6982 to 7006 (assembled) via NASA; Pan Plates AS12-46-6836...
