Northeastern U.S., December 1957December 1957

In early December 1957, witnesses across the northeastern United States reported seeing a bright, fast-moving object with a distinctive colored tail. The sightings occurred over several days and were reported from multiple locations including Connecticut, Pennsylvania, New York, and New Jersey. The object was observed both from the ground and from aircraft, and the reports were compiled into a formal Air Force investigation file.

The object itself was described differently across the various sightings, reflecting the different viewing angles and distances. Some witnesses described it as resembling a grapefruit or ball of fire. Others noted a bright, creamy white color with a reddish or orange-red trailing tail or exhaust. One detailed account described the forward part as yellowish white, the rear section as light blue, and the tail as orange-red fading to pinkish red. The object appeared to move at high speed, with some estimates ranging from 572 to 2,900 miles per hour, and was estimated to be at altitudes between 589 and 12,200 feet.

The observations came from a range of credible witnesses. A housewife in Plainview, New York, first spotted the object while adjusting her bedroom blinds and called her husband's attention to it. The object appeared to head toward the ground before disappearing over the horizon. Crews aboard Air Force aircraft also reported sightings, including personnel aboard an AEW (Airborne Early Warning) aircraft flying at 7,000 feet. A pilot flying an Allegheny Airlines flight observed the phenomenon from the ground at Harrisburg State Airport. An ambulance driver near Boonton, New Jersey, saw a flashing light appear in front of his vehicle. Multiple control tower operators at various airports also filed reports. The file notes that observers in several instances believed the movement was slower than what would be expected from a meteor.

The investigation included weather analysis showing clear skies and excellent visibility during the sighting period. Wind aloft measurements at various altitudes were recorded. No physical evidence was collected. The file indicates that the Air Force's conclusion on this case was "Unknown," meaning the investigators could not definitively explain the observations through conventional causes. The complete case file of 28 pages is reproduced below as held by the National Archives.