# The phenomenon itself became rarer.

> Still possible: The phenomenon itself became rarer.

Source: https://mysteriesdept.com/mysteries/hessdalen-lights/answers/ANS0D0NDZY472MP/the-phenomenon-itself-became-rarer  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Hessdalen lights](https://mysteriesdept.com/mysteries/hessdalen-lights)[Why did reports fall from about 20 a week in 1981–1984 to about 10–20 a year?](https://mysteriesdept.com/mysteries/hessdalen-lights/questions/QST0D0NDP5M4JWN/why-did-reports-fall-from-about-20-a-week-in-19811984-to)Answer

Answer · Hessdalen lights

# The phenomenon itself became rarer.

The phenomenon itself became rarer.

**Still possible** Answers **1** questionDeduced0

## Where it stands

**Still possible** Its tests haven't settled it: one piece of evidence for, none against. It needs two reviews to be accepted.

## What it predicts

- Automatic detection rates, with constant equipment, also fall.

## What would rule it out

- Constant automatic detection rates with falling witness reports.

## Evidence 1 for · none against

[Witness counts within 0.1–5 km decline from double figures in the late 1990s to low single figures in the…](https://mysteriesdept.com/mysteries/hessdalen-lights/evidence/EVD0D0NE05Y4WFH/witness-counts-within-0-15-km-decline-from-double-figures-in)

Suggestive

FOR

## The questions it answers

[Why did reports fall from about 20 a week in 1981–1984 to about 10–20 a year?](https://mysteriesdept.com/mysteries/hessdalen-lights/questions/QST0D0NDP5M4JWN/why-did-reports-fall-from-about-20-a-week-in-19811984-to)

Part of [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)

Open3 answers, none ahead

## Cite it

```
Mysteries Department. (2026). The phenomenon itself became rarer. [Answer ANS0D0NDZY472MP]. https://mysteriesdept.com/r/ANS0D0NDZY472MP
```

Key

**ANS** 0D0NDZY472MP

Kind

Answer · hypothesis

Origin

Deduced

Version

1

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