Hessdalen lights

The Hessdalen lights are unidentified lights which have been observed in a 12-kilometre-long (7.5 mi) stretch of the Hessdalen valley in rural central Norway periodically since at least the 1930s.[1]

  1. ^ Leone, Matteo (2003). "A rebuttal of the EMBLA 2002 report on the optical survey in Hessdalen" (PDF). Comitato Italiano per il Progetto Hessdalen. pp. 1–29. Archived (PDF) from the original on 2014-02-07.