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This section contains descriptions of unexplained facts provided by eyewitnesses or published in the media, as well as the results of their analysis by the group.

UFO. Netherlands

ID #1694511079
Added Tue, 12/09/2023
Author July N.

Initial data

Initial information from sources or from an eyewitness
Incident date: 
12.09.2023 00:21

2 purple semicircles next to each other are seen over the city of Maastricht:

2 purple semicircles emitting a purple glow, I saw it on camera, but not with the naked eye, it was thundering very hard, strong thunder, but without rain

Original news

2 paarse halve cirkels naast elkaar

MAASTRICHT, LB — 2 halve cirkels die paars waren en een paarse gloed afgaven zag het op camera maar niet met de blote oog het was erg hard aan het onweren veel donders maar geen regen


List of versions containing features matching the eyewitness descriptions or material evidence

The storm

The storm is an atmospheric phenomenon in which the inside of clouds or between the cloud and the earth's surface arise electrical discharges - lightning accompanied by thunder. It is quite a common natural phenomenon in certain situations could be considered something abnormal, such as when it appears under unusual conditions or unfamiliar to the eyewitness. A vivid example is the so-called "snow storm" (or "snow storm"), i.e. thunderstorm, which is when rain falls heavy snow, freezing rain or ice pellets.

Light sources on clouds

Lasers, searchlights, car headlights and other light sources of sufficient power can form a column of light in a dusty or foggy atmosphere, various patterns on low clouds, fog or haze. Also, the rays can highlight parts of the cloud, objects or birds, giving them bizarre shapes.

Searchlights can shine with one beam, several. They can be stationary, move, and also form spinning carousels on the clouds, which can change shape and color.

It often seems that the light source is located at the point where the beam hits the cloud, and not vice versa.


Versions testing, their confirmation or refutation. Additional information, notes during the study of materials

News: The cause of the mysterious purple light

In the Netherlands, witnesses from many cities talked about purple or blue glow that moves across the night sky. This purple light beam, which can be seen in the last night of Arnhem, Dirinon and Zutphen. This sounds mysteriously. 23-year-old sander of Brinkenberg of Welpa conducted an investigation and found the cause, removing on video a strange train.

Press Secretary of the railway company points out:

"It is a measuring train, and we use it to measure the thickness of a contact network".


The most likely explanation. The version, confirmed by the investigation
Not enough information

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