Case file · Sighting

Foo fighters

WWII aircrews on all sides reported glowing orbs pacing their aircraft.

1944 CE · 50.00, 7.00 · status: unexplained

The account

Allied and Axis pilots independently described fast, glowing balls of light that shadowed planes and evaded pursuit. The term came from a comic strip.

The sceptical view

Candidate explanations include St Elmo's fire, ball lightning and misperceived reflections; some cases remain unexplained.

The researched reading

Genuine, widely shared aircrew experiences, most likely a mix of St Elmo’s fire, reflections, other aircraft and night-vision illusions. A residue of well-told cases has never been fully explained.

ExplanationWeightWhy
Something known, misidentified32%Many "pacing" lights fit reflections on canopies, other aircraft, flares, rocket-assisted night fighters, searchlights and planets that appear to follow a moving plane.
Perception, memory or mind18%Night combat flights produce fatigue, hypoxia and the autokinetic effect, in which a fixed light appears to move; expectations spread among units once the name existed.
A known natural phenomenon15%St Elmo’s fire forms glowing balls on wingtips and propellers in electrified air, a well-known effect that moves with the aircraft.
A poorly understood natural phenomenon14%Ball lightning and other atmospheric plasmas, still poorly understood, have been proposed for persistent free-floating orbs.
Genuinely anomalous12%Some reports by experienced crews describe orbs that evaded pursuit and matched manoeuvres; no single explanation covers them all, and they were never systematically recorded.
Secret human technology8%Allied crews suspected German weapons, but post-war intelligence found no such device, and Axis crews reported the same lights.
A hoax or fabrication1%The reports came through unit intelligence channels; fabrication is unlikely.

Official position: Wartime intelligence and the 1953 Robertson Panel considered them unexplained but not dangerous, probably electrostatic or electromagnetic phenomena or reflections.

Connections in the atlas

Sources

  1. Wikipedia
  2. St. Elmo’s fire (Wikipedia)
  3. Ball lightning (Wikipedia)
Open it in the living atlas