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Hessdalen Project Instrumented Observations

Date of account
1990–2009
Location
Hessdalen Valley, Trøndelag
Source
model_recalled_reference
Record updated
2026-10-10

Record summary

The Hessdalen lights are recurring luminous phenomena investigated in Norway through field observations, cameras, radar, and other instruments, with Project Hessdalen continuing during the requested period. The case matters because it combines repeated witness reports with attempts at physical measurement in a high-latitude environment. Proposed explanations include atmospheric plasma, geological or electrical processes, misidentified aircraft, and instrumentation effects; no single account is accepted as established. Researchers should select a particular observation campaign or dated report rather than treating Hessdalen as one encounter.

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