radiated a yellow-orange light and appeared to ascend from 2,000 feet (610 m) to 10,000 feet (3,000 m). 1 [ 53 ] 1969 Jimmy Carter UFO incident Leary , Georgia United States Jimmy Carter 's sighting. 1 [ 54 ] 1970s Barry DeLong UFO incident Somerset County , Maine United States Sheriff Barry A. DeLong