HISTORICAL

Hessdalen lights — The Hessdalen valley in Norway has produced unexplained luminous phenomena for decades. Project Hessdalen, an ongoing scientific monitoring effort, has documented the lights with instruments.

Since approximately 1981, the remote Hessdalen valley in central Norway has produced recurring, unexplained luminous phenomena — drifting balls of light, sometimes the size of a car, that appear at altitudes from a few meters above the ground to thousands of meters in the air. Hessdalen is one of the very few alleged paranormal sites where a long-running, scientifically instrumented monitoring effort has been established. 【Background】 The peak years of activity occurred between December 1981 and the summer of 1984, when residents reported lights up to twenty times per week. The frequency has declined since but never ceased. Hessdalen is sparsely populated, with a long valley about 12 km between low mountains, making the consistent location of the reports especially notable. 【The Encounter】 Typical observations describe a bright white or yellow light, often pulsating or changing color, moving slowly above the valley floor or hovering against the mountainsides. Some lights have been reported as large as two meters in diameter. They can persist for over an hour and have been observed by police, journalists, and visiting researchers. 【Investigation】 Project Hessdalen began in 1983 as a scientific monitoring effort by Norwegian and Italian universities. A permanent automated measurement station was installed in 1998, recording magnetometric, electrostatic, and spectrographic data. The project's instruments have repeatedly captured light phenomena along with unusual readings, although the precise mechanism behind the lights remains unsolved. 【Modern Assessment】 Several scientific hypotheses have been proposed: ionized dust from copper-rich soil interacting with sulfurous gases from nearby rocks, plasma generated by atmospheric piezoelectric effects, or a combination of geophysical and chemical processes. None has been definitively confirmed. The lights are considered a genuine but poorly understood natural phenomenon by most researchers, distinguishing Hessdalen from the wider UFO-as-craft hypothesis. Source: https://en.wikipedia.org/wiki/Hessdalen_lights

62.7878°, 11.1894°

Source: Wikipedia