Case · C-050
Hessdalen: the lights of the Norwegian valley studied by an automatic station
Hessdalen Valley, Trøndelag · Norway · Dec 1981
In flight Civilian witnesses Photos Instruments
Unexplained
- What happened
- Unusual lights have been reported in the Hessdalen valley since at least the 1930s; between December 1981 and mid-1984 they were observed 15–20 times a week. Since 1983 Project Hessdalen, which grew out of Norwegian and Swedish UFO associations, has organized observation campaigns, and in 1998 an automatic measuring station with cameras was installed in the valley; later the EMBLA program involved Østfold University College and the Italian CNR. The measurements have documented the phenomenon, but there is no shared explanation.
- Proposed explanation
- Among the published hypotheses: combustion of suspended dust, dust plasmas ionized by radon decay, the valley as a geological “battery” (engineer Jader Monari, a hypothesis received with reservations by other physicists); none has gained consensus.
- Official investigation
- Project Hessdalen (since 1983); Østfold University College and the Italian National Research Council (EMBLA program)
Sources
- ScienceNorway, “Little valley – a giant battery?” (press)
- Project Hessdalen – project website (automatic station and image archive) (other)
- Wikipedia (en) – Hessdalen lights (other)
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