Unraveling the Mystery of the Hessdalen Lights

The Hessdalen Lights are a mysterious and unexplained phenomenon that has been observed in the Hessdalen Valley of Norway for several decades. These lights appear as bright, luminous orbs or flashes of light and have sparked the curiosity of scientists, researchers, and UFO enthusiasts. Here’s a closer look at the mystery of the Hessdalen Lights:

Characteristics of the Hessdalen Lights:

  1. Appearance: The Hessdalen Lights are typically described as spherical, glowing, and colored white, yellow, or red. They can vary in size from small points of light to larger, more defined orbs.
  2. Movement: The lights often appear to move slowly and silently through the valley, sometimes hovering in one place before vanishing or changing direction.
  3. Duration: Some sightings last for just a few seconds, while others persist for several minutes.

History of the Phenomenon:

  • The Hessdalen Lights were first reported in the early 1980s, but there have been anecdotal accounts of strange lights in the area dating back to the 1940s.
  • The phenomenon gained more attention in the 1980s when it was the subject of scientific investigations, including studies by Norwegian and international researchers.

Scientific Studies and Explanations:

Several hypotheses and scientific studies have attempted to explain the Hessdalen Lights:

  1. Plasma Phenomenon: One prominent theory suggests that the lights may be a form of natural plasma phenomenon. In certain geological conditions, ionized gases in the atmosphere can produce glowing orbs. This explanation is supported by the presence of various minerals and metals in the region’s rocks.
  2. Piezoelectric Effects: Some researchers have proposed that piezoelectric effects, where mechanical stress on rocks generates electric charges, could play a role in creating the lights.
  3. Geological Activity: Geothermal activity, such as underground gas emissions or seismic activity, has been investigated as a potential cause of the lights.
  4. Unknown Natural Phenomenon: Despite extensive study, no single, conclusive explanation has been reached, and the true cause of the Hessdalen Lights remains unknown.

Ongoing Research and Monitoring:

  • The Hessdalen Lights Phenomena project, led by the Hessdalen AMS (Automatic Measurement Station) team, has been continuously monitoring and studying the lights since the early 2000s.
  • Researchers have set up various scientific instruments, including cameras, spectrometers, and magnetometers, to capture data and gain insights into the nature of the lights.

Popular and UFO Theories:

  • The Hessdalen Lights have also attracted UFO enthusiasts who have suggested extraterrestrial origins for the phenomenon. However, no credible evidence supports this theory.


The Hessdalen Lights remain a fascinating and unexplained natural phenomenon. While various scientific theories have been proposed, none have provided a definitive explanation for the lights. Ongoing research and monitoring efforts continue in an attempt to unravel the mystery of the Hessdalen Lights, making it an intriguing subject for both scientists and enthusiasts interested in unexplained phenomena.



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