What happened
At 8:45 on the morning of 16 March 1967, all ten Minuteman I nuclear missiles of Echo Flight, controlled from a capsule beneath the Montana prairie near Malmstrom Air Force Base, dropped off strategic alert within seconds of each other, showing No-Go indications. No other flight in the wing was affected, and crews worked for about a day to restore them. An Air Force message sent the next day, declassified in 1996, called the unexplained loss cause for grave concern. Nearly thirty years later, in 1996, former missile officer Robert Salas told the Great Falls Tribune that during a shutdown he witnessed, topside guards had phoned him about strange lights and then a glowing red oval object hovering over the gate, moments before the missiles went down. Salas later located this at nearby Oscar Flight and linked it with Echo. Through books, a 2010 National Press Club event and briefings to the Pentagon's AARO, the story became the best-known claim that UFOs have interfered with nuclear weapons.
The official explanation
An Air Force history of the 341st Missile Wing records that rumours of UFOs around Echo Flight at the time of the fault were disproven, and a mobile strike team on site that morning reported nothing unusual. Brian Dunning argues Salas's memories conflict with unit records and that the documented shutdown and the UFO stories were later merged. Robert Sheaffer suggests the light seen at Oscar Flight was Mars. In June 2025 The Wall Street Journal reported that Pentagon UFO investigators had concluded the outage was caused by a secret test of a device simulating a nuclear electromagnetic pulse, kept from crews so Moscow would not learn the arsenal's vulnerability.
The anomalous case
The core fact is documented: a whole flight of ten nuclear missiles failed almost simultaneously, and the Air Force's own message called the lack of an identifiable cause cause for grave concern. Salas has repeated his account publicly for decades, including to the Pentagon, and says the shutdown he witnessed involved guards reporting a glowing red object at the gate. He told the Calgary Herald that shutting them down would have required individual signals to each missile within seconds, something he said had never happened before and that the US still could not do. Even the 2025 explanation supports part of the anomalous reading: if the cause was a classified EMP test that witnesses were never told about, then the men who connected strange lights to failing missiles were deliberately left in the dark by their own government, and a classified technology, not ordinary equipment failure, took the missiles down.
The strongest argument that this was something genuinely unknown or classified, with each claim attributed to the person who made it.
Sources
- Malmstrom UFO incident Wikipedia
- Skeptoid #842: The Day the UFO Deactivated the Nukes Skeptoid
- Nearly six decades after seminal Montana UFO incidents, air force vets brief Pentagon Calgary Herald
- Malmstrom & Eagle Flight - Was this an EMP Test? (discussion quoting The Wall Street Journal, June 2025) Metabunk
Witness reports elsewhere
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