Malmstrom UFO incident

In 1996, retired Air Force personnel claimed that a weapons failure at a Montana nuclear missile complex in 1967 was connected to reports of a UFO sighting over Malmstrom Air Force Base. The claims became known in ufology and popular culture as the Malmstrom UFO incident. Skeptics argue the UFO was likely the planet Mars and entirely unrelated to the malfunction. A military investigation found no connection to any UFO sighting. A 2025 Pentagon report revealed the incident had been caused by a classified test of an electromagnetic pulse device.