Unresolved
The Hessdalen Lights
From late 1981, residents of a small valley reported lights hovering and drifting, sometimes several times a week. Project Hessdalen began in 1983 with cameras, radar and magnetometers, and an automatic monitoring station has run since 1998.
Weigh the evidence
The ledger
What the record shows, what people say, and the best explanation available so far.
What's documented
- Decades of instrument data and scientific papers.
What's claimed
Nothing on this side of the ledger.
Best explanation so far
Scientists suspect a natural phenomenon, possibly glowing plasma tied to the valley's geology, mixed with car lights and aircraft. It is a rare example of a UAP studied with ongoing instruments.
Where to look
Check the sources
Go to the originals. Every link opens the archive or record in a new tab.