Former DNI Ratcliffe says number of UFO sightings ‘far greater’ than those made public NASA’s new administrator raised doubts on the idea that the mysterious flying objects caught on camera by U.S. Navy pilots were just optical illusions. Bill Nelson, NASA’s recently appointed leader, is a former Florida senator and a spaceflight veteran. In an … Continue reading New NASA Leader Doesn’t Think UFO Sightings Are Optical Illusions