# Teodorani 2004: A long-term scientific survey of the Hessdalen phenomenon

> Massimo Teodorani, 2004. 8 records on Mysteries Department cite it. The main summary of the instrumental campaigns to 2002.

Source: https://mysteriesdept.com/sources/SRC0D0NDAEM2WKB/a-long-term-scientific-survey-of-the-hessdalen-phenomenon  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Sources](https://mysteriesdept.com/sources)[Hessdalen lights](https://mysteriesdept.com/mysteries/hessdalen-lights)Teodorani 2004

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# A long-term scientific survey of the Hessdalen phenomenon

Massimo Teodorani, 2004. _Journal of Scientific Exploration 18(2), 217–251_.

Reviews the Norwegian data and the Italian EMBLA expeditions of 2000–2002 using optical, radio and radar methods. Reports radiant power varying up to 19 kW through the sudden appearance of clusters of light balls, the ejection of smaller balls, an unidentified frequency shift in the VLF range and possible deposition of metallic particles, and describes the Automatic Measurement Station running since summer 1998.

**Hessdalen lights** ArticleChecked against the original0

## What it's used for here

The main summary of the instrumental campaigns to 2002.

## Cited by on this site 8 records

[Yes; a residue of the lights is a distinct natural luminous phenomenon of the valley.](https://mysteriesdept.com/mysteries/hessdalen-lights/answers/ANS0D0NDPDE0593/yes-a-residue-of-the-lights-is-a-distinct-natural-luminous)

Answer

ANS

[In 1984 a radar tracked a light at about 8,500 m/s, and magnetic disturbances often coincided with sightings.](https://mysteriesdept.com/mysteries/hessdalen-lights/evidence/EVD0D0NDPN83EPV/in-1984-a-radar-tracked-a-light-at-about-8-500-m-s-and)

Evidence

EVD

[The 1984 usable spectra showed a continuum with no lines.](https://mysteriesdept.com/mysteries/hessdalen-lights/evidence/EVD0D0NDV9P5S4B/the-1984-usable-spectra-showed-a-continuum-with-no-lines)

Evidence

EVD

[The station recorded lights more often in winter and in late evening, a pattern from 1998–2002 statistics.](https://mysteriesdept.com/mysteries/hessdalen-lights/evidence/EVD0D0NDQ4W2SJX/the-station-recorded-lights-more-often-in-winter-and-in-late)

Evidence

EVD

[The automatic measurement station (Blue Box) begins operation](https://mysteriesdept.com/mysteries/hessdalen-lights/events/EVT0D0NDJGE7PTZ/the-automatic-measurement-station-blue-box-begins-operation)

EVT

[Massimo Teodorani](https://mysteriesdept.com/mysteries/hessdalen-lights/people/FIG0D0NDGA435EP/massimo-teodorani)

FIG

[The Hessdalen lights](https://mysteriesdept.com/mysteries/hessdalen-lights)

The mystery article

MYS

[Do the Hessdalen lights include a natural phenomenon not yet explained, once known light sources are removed?](https://mysteriesdept.com/mysteries/hessdalen-lights/questions/QST0D0NDN6C0EE5/do-the-hessdalen-lights-include-a-natural-phenomenon-not-yet)

Question

QST

## Cite it

```
Teodorani, M. (2004). A long-term scientific survey of the Hessdalen phenomenon. Journal of Scientific Exploration 18(2), 217–251. http://old.hessdalen.org/reports/scex1802217251.pdf
```

[Read it free at old.hessdalen.org](http://old.hessdalen.org/reports/scex1802217251.pdf)

Key

**SRC** 0D0NDAEM2WKB

Kind

Journal article

Rights

unknown

Kept

27 Oct 2026, for editors

Checked

Against the published article

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

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