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Nightmarks in Trøndelag | Nightmarks

Explore/Trøndelag

Nightmarks in Trøndelag

1 nightmark documented

Unexplained Phenomena

The Hessdalen Lights — Norway's Permanent Scientific Mystery

Hessdalen Valley, Holtålen, Norway·1981

Scientists have monitored Norway's Hessdalen lights since 1983 with radar and cameras. After 40 years of data, they still can't explain them.

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