File 147 · 1981 – present

Hessdalen lights, Norway

Hessdalen, Trøndelag, Norway · Region, not street

Opened 9/4/2026

Ledger illustration of the file — not a photograph of the object. Ledger illustration of the report. A Norwegian valley in winter. — Night Ledger illustration of the file

LightsHynek NLphotographicArchiveRegion50 witnesses

Standing

Unidentified

On the public record, and still open. A claim, paper, or film — not a finding that it was ours, and not a finding that it was not.

What was claimed

A remote valley has produced decades of unexplained lights, instrumented by Project Hessdalen. Some are photographed; none are identified as a fleet.

What is on the record

This file is a working record — a report, not a verdict. Official paper, if any, is linked where we have it.

From 1981, people in the Hessdalen valley reported white, yellow, and red lights that hovered, darted, and sometimes passed behind terrain. A wave in 1981–85 brought Project Hessdalen: magnetometers, radar, and cameras on the ridge. Lights continue, less often, into the present. Spectra have sometimes shown a thermal continuum, sometimes not.

Ionization, combustion of valley gases, and dust have been modeled. No model owns every night. The wiki keeps a single index file for a long watch: a valley, a research station, and a phenomenon that did not end when the reporters left.

Could this have been ours?

The known sky, that night.

Satellites were already up. The station was not. Starlink was not.

Always

Venus and the bright planets

A fixed brilliant point. Does not streak. Does not hover over a street then leave. Often the first misread light in a rural report.

Always

Aircraft, balloons, meteors

Landing lights, flares, lanterns, reentries, fireballs. They are on the known sky. They do not close a file by themselves — they are what a serious look has to hold the claim against.

Orbit · Space — the desks for lights that are already named.

Sources

Project Hessdalen

Related files

Same craft, same place, same years. A neighbor in the catalogue — not a conclusion.

Lights

Same craft · Same years · May 19, 1986

1986 Brazilian Night of the UFOs

São José dos Campos and multiple states · Brazil

Unidentified

Radar detected 21+ unidentified objects across southeastern Brazil. Multiple pilots (civilian and military) and ground observers, including 2,000+ at an air base, reported luminous objects. Brazilian Air Force scrambled five jets (F-5E and Mirages) for interception. Objects exhibited extreme speeds (up to 11,500 mph) and maneuvers. Official Ministry of Aeronautics acknowledgment and press conferen

LightsFrom the net

Same craft · 10 September 2026, night

Mysterious lights over the Las Vegas valley

Las Vegas, Nevada · United States

Unidentified

KLAS aired a viewer video of sparkling lights hovering in the Las Vegas night sky on 10 September.

LightsFrom the netFilm

Same craft · Early September 2026 (recent, prior to Sept 10 post)

Strange Lights Floating and Emitting Horizontal Light, Geumchon, Paju, South Korea

Geumchon, Paju · South Korea

Unidentified

A resident in an apartment complex saw and filmed strange floating lights. One light appeared to emit or fire another light horizontally before disappearing. First-person account shared on X.