Within Orne UFOs
Why Ménil Hubert Still Stands Out
Orne's strongest unresolved GEIPAN file is a modest but intriguing night-road sighting with clear limits on what it can prove.
On this page
- What the witness reported
- Why GEIPAN left it unexplained
- What the case can and cannot prove
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Introduction
Ménil-Hubert-sur-Orne is the Orne case that still deserves attention precisely because it is not spectacularly well proven. On 29 May 2013, at about 11:45 pm, a motorist near the village cemetery reported seeing a low, dark, flattened object with four fixed red lights and a sharp buzzing sound. GEIPAN, the French space agency’s official investigation unit for unidentified aerospace phenomena, investigated the report, considered ordinary explanations, and left the case in category D1: unexplained after enquiry, but only moderately supported because there was one witness and no photograph or video.[GEIPAN]cnes-geipan.frOpen source on cnes-geipan.fr.
That is why the case stands out in Orne’s UFO record. It is not a confirmed extraordinary craft, and it should not be presented as one. It is a small rural night-road sighting with a detailed official file, a gendarmerie statement, a site reconstruction, and clear limits. Its value is that it shows what a careful “unresolved” label actually means: a report that resisted the available checks, while still depending heavily on one person’s perception, memory and estimates.[GEIPAN]cnes-geipan.frOpen source on cnes-geipan.fr.
What the witness reported
The sighting took place as the witness was driving on the D25 towards Ménil-Hubert-sur-Orne after leaving Athis-de-l’Orne. GEIPAN’s investigation report says the witness first saw the phenomenon shortly before entering the village, above the cemetery. It was described as black, large, flattened and “pebble”-shaped, rounded at the front and rear, with the rear wider than the front. Four red lights were reported beneath it: two at the front and two at the rear.[GEIPAN]cnes-geipan.frCompte rendu enquete398Compte rendu enquete398
The observation was brief. The witness said the object appeared at very low altitude, initially seemed stationary, then moved very slowly towards the north-west while producing a high, hard-to-define buzzing sound. After the witness stopped the car and tried to get ready to film, the object was lost behind the local relief, hedges or trees. The whole episode was estimated at about one minute.[GEIPAN]cnes-geipan.frCompte rendu enquete398Compte rendu enquete398
The witness’s own questionnaire adds the most vivid details, but also shows why the case is difficult. He estimated the height at roughly 30 metres and the width at about 25 to 30 metres, while also saying the object was very flat, perhaps only around a metre thick. He compared the red lights to car brake lights, said they did not blink, and stated that the object moved slowly, perhaps 15 to 20 km/h. He also admitted he did not manage to film it, despite trying to take out his phone.[GEIPAN]cnes-geipan.frGEIPANMicrosoft WordGEIPANMicrosoft Word
The gendarmerie statement, taken on 11 June 2013, broadly matches the GEIPAN file but uses slightly different wording. In that statement, the witness described a rounded triangular form, more like a pebble, with fixed red lights at the front and rear. He said it was about 40 metres above the cemetery, moved very gently after first appearing fixed, and then disappeared suddenly from view behind a hedge.[GEIPAN]cnes-geipan.frOpen source on cnes-geipan.fr.
Those small variations matter. They do not by themselves discredit the report; people rarely estimate distance, size and altitude accurately at night, especially during a surprising event. But they remind us that the most dramatic parts of the story — size, exact altitude and whether it “disappeared” or was simply hidden — rest on human estimation rather than instrumented evidence.
Why GEIPAN left it unexplained
GEIPAN’s conclusion was not that the witness had seen a known aircraft, lantern, meteor, planet or re-entry. The case page says the observation did not match classic misidentifications, that the “pebble” form was unusual in reports of unidentified aerospace phenomena, and that the event was classed D1: unexplained, moderately strange, and of medium-to-good consistency.[GEIPAN]cnes-geipan.frOpen source on cnes-geipan.fr.
The investigation report shows how that conclusion was reached. GEIPAN reconstructed the observation route and viewing positions, noting the witness’s position near the cemetery, the apparent movement across roughly 37 degrees of sky, and the disappearance behind the local relief at a lower elevation. The report recorded a clear sky, a single phenomenon, no trail or halo, no environmental effects, a dark form, and a high buzzing sound.[GEIPAN]cnes-geipan.frCompte rendu enquete398Compte rendu enquete398
What D1 really means
The D1 label is often misunderstood. In GEIPAN’s system, category D means a phenomenon remains unidentified after the available investigation; it does not mean that an extraordinary craft has been demonstrated. D1 is the weaker of the two D subcategories: it covers strange cases of medium consistency, often involving a single witness and no photo or video. D2 is reserved for very strange, strongly supported cases, such as those with multiple independent witnesses, recordings or physical traces.[GEIPAN]cnes-geipan.frGEIPANForte baisse des CAS D sur les 10 dernières années | GEIPANGEIPANForte baisse des CAS D sur les 10 dernières années | GEIPAN
GEIPAN’s broader method is based on two measures: residual strangeness and consistency. Strangeness asks how far the report remains from known explanations after investigation. Consistency depends on how much information was gathered and how reliable it is, including the number of witnesses, precision of answers, coherence, photos and other supporting material. If the information is too weak, a case may become category C rather than D.[GEIPAN]cnes-geipan.frGEIPANLa méthodologie de classification au GEIPAN | GEIPANGEIPANLa méthodologie de classification au GEIPAN | GEIPAN
Ménil-Hubert sits in the narrow space between “too weak to analyse” and “strongly evidenced”. GEIPAN’s case page lists it as category D, with a strangeness score of 0.62, and the investigation report’s final table gives medium scores for consistency and strangeness. That fits the narrative: the report was specific enough to investigate, and unusual enough not to be matched to a common cause, but not strong enough to prove much beyond the witness’s account.[GEIPAN]cnes-geipan.frOpen source on cnes-geipan.fr.
The rarity of D cases also helps explain why the file attracts attention. GEIPAN’s dynamic statistics list only 3.1% of published classified cases as category D, compared with much larger shares for identified, probably identified, or insufficiently documented cases. In that national context, Orne’s Ménil-Hubert file is notable, but “notable” still means officially unresolved rather than verified extraordinary.[GEIPAN]cnes-geipan.frGEIPANStatistiques | GEIPANGEIPANStatistiques | GEIPAN
What makes the case stronger than a vague light in the sky
The strongest feature of Ménil-Hubert is that it is not just a distant point of light. The witness described shape, colour, movement, relative position, sound and the local setting. GEIPAN had a questionnaire, a gendarmerie record and an on-site reconstruction, not simply a short anecdote repeated online. That gives the case more texture than many ordinary night-sky reports.[GEIPAN+2GEIPAN]cnes-geipan.frGEIPANMicrosoft WordGEIPANMicrosoft Word
The low-altitude claim is also central. The witness did not describe a star-like object high in the sky; he placed it over or near the cemetery, close enough to be hidden by trees, hedges or terrain. During reconstruction, GEIPAN recorded viewing positions and elevations, and the report concluded that the object’s apparent change of position as the witness drove down the road seemed to support the idea that it was not high in the sky.[GEIPAN]cnes-geipan.frCompte rendu enquete398Compte rendu enquete398
The sound detail adds another layer. A sharp buzzing or high-pitched hum is harder to square with some standard explanations, especially astronomical objects, distant aircraft lights with no visible aircraft, or an atmospheric re-entry. GEIPAN specifically noted that an astronomical confusion was not retained and that the reported sound did not match an atmospheric re-entry.[GEIPAN]cnes-geipan.frCompte rendu enquete398Compte rendu enquete398
However, each of these strengths is also fragile. A low object seen briefly at night can be misjudged in size and distance. A sound heard during a surprising roadside stop may be hard to attribute with confidence. A dark outline under a clear night sky may be shaped by contrast, expectation and the witness’s own attempt to describe something unfamiliar. The case is intriguing because these details are specific, not because they are independently confirmed.
What weakens the claim
The central weakness is simple: one witness, no image, no independent confirmation. The witness said he tried to film the object but missed the chance; GEIPAN’s conclusion explicitly notes the absence of photo or video as one reason the case remains only moderately consistent.[GEIPAN]cnes-geipan.frOpen source on cnes-geipan.fr.
There is also no supporting pattern of reports from nearby residents, drivers, police, pilots or air traffic sources in the file. The investigation report says a meteor-style re-entry would probably have produced other witnesses, but none came forward. That absence helps reject one explanation, yet it also limits the case overall. A large low object over a village cemetery should, in principle, have been easier to corroborate if other people were outside, looking in the right direction, and able to report it.[GEIPAN]cnes-geipan.frCompte rendu enquete398Compte rendu enquete398
The witness’s prior interest in UFOs is another point to handle carefully. In the questionnaire, he stated that he already believed in UFOs, had some interest in the subject, and had previously seen a strange triangle in the sky. That does not make the testimony false. It does mean a fair reading should consider expectation, interpretation and memory as possible influences on how the event was understood and described.[GEIPAN]cnes-geipan.frGEIPANMicrosoft WordGEIPANMicrosoft Word
Finally, the size estimates are inherently uncertain. A reported object 25 to 30 metres wide, perhaps only a metre thick, at very low altitude, moving slowly over a cemetery, is dramatic. But without a measured distance or a second viewpoint, apparent size can easily become physical size in a witness’s memory. This is why GEIPAN’s category is useful: it preserves the unresolved character of the report without turning estimates into proof.
What the case can and cannot prove
Ménil-Hubert can prove that Orne has at least one modern official UFO file that GEIPAN investigated and did not explain. It can also show that the report contained more than a vague light: the witness gave a consistent core description of a low dark form, fixed red lights, slow movement and a buzzing sound, and the official file includes a questionnaire, gendarmerie statement and reconstruction.[GEIPAN]cnes-geipan.frOpen source on cnes-geipan.fr.
It cannot prove that an unknown craft crossed the village. The case lacks the evidence that would move it into a much stronger evidential category: no video, no photograph, no radar data, no physical trace, no independent witness and no later corroborating report. Even GEIPAN’s own conclusion says further testimony could either explain the case or make it more consistent.[GEIPAN]cnes-geipan.frOpen source on cnes-geipan.fr.
The most balanced interpretation is therefore modest. The witness may have seen something genuinely unusual and difficult to identify. GEIPAN did not find a satisfactory conventional explanation in the file as it stood. But the case remains dependent on a single night-time roadside observation, and the “unexplained” label should be read as a carefully limited official status, not as a final answer.
Within Orne’s department-level UFO history, that is exactly why Ménil-Hubert still stands out. It is neither a debunked anecdote nor a strong evidential landmark. It is the department’s clearest example of a case that survived official checking while still showing the hard boundary between a credible unresolved report and proof of something extraordinary.
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Endnotes
1.
Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/sites/default/files/PV%20n%C2%B0726%20%282013310895%29.pdf
2.
Source: cnes-geipan.fr
Title: GEIPANMission & Geipan | GEIPAN
Link:https://www.cnes-geipan.fr/fr/missions-methodes-et-resultats
3.
Source: cnes-geipan.fr
Title: GEIPANMicrosoft Word
Link:https://www.cnes-geipan.fr/sites/default/files/Questionnaire%20terre-R580.pdf
4.
Source: cnes-geipan.fr
Title: GEIPANForte baisse des CAS D sur les 10 dernières années | GEIPAN
Link:https://www.cnes-geipan.fr/fr/actualites/baisse-cas-d
5.
Source: cnes-geipan.fr
Title: GEIPANLa méthodologie de classification au GEIPAN | GEIPAN
Link:https://www.cnes-geipan.fr/fr/actualites/methodologie-classification-geipan
6.
Source: cnes-geipan.fr
Title: GEIPANStatistiques | GEIPAN
Link:https://www.cnes-geipan.fr/fr/stats
7.
Source: geipan.fr
Link:https://geipan.fr/fr/recherche/cas/tab?field_date_value=2004-04-23&field_is_new_value=All&field_is_revisited_value=All&field_type_de_cas_target_id=All&order=field_classification_des_cas&page=%2C36&sort=desc
8.
Source: youtube.com
Title: Meeting France’s UFO detectives
Link:https://www.youtube.com/watch?v=zczcBLukQ6s
9.
Source: youtube.com
Link:https://www.youtube.com/watch?v=hn2xTieploU
10.
Source: youtube.com
Title: Geipan: France is also interested in UFOs
Link:https://www.youtube.com/watch?v=OLXDikL331Y
11.
Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/fr/cas/2013-05-08459
12.
Source: cnes-geipan.fr
Title: Compte rendu enquete398
Link:https://www.cnes-geipan.fr/sites/default/files/Compte%20rendu%20enquete398.pdf
13.
Source: cnes-geipan.fr
Title: Recherche de CASNo information is available for this page
Link:https://www.cnes-geipan.fr/fr/recherche/cas
14.
Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/fr/glossaire
15.
Source: cnes-geipan.fr
Title: missions methodes et resultat
Link:https://www.cnes-geipan.fr/fr/actualites/missions-methodes-et-resultat
16.
Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/fr/faq-page
17.
Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/fr/cas/1979-07-00644
18.
Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/fr/recherche/cas/tab?field_agregation_index_value=&field_date_d_observation_value%5Bmax%5D=&field_date_d_observation_value%5Bmin%5D=&field_date_value=2022-03-29&field_departement_target_id=&field_document_existe_ou_pas_value=All&field_is_new_value=1&field_is_revisited_value=All&field_latitude_value%5Bmax%5D=&field_latitude_value%5Bmin%5D=&field_longitude_value%5Bmax%5D=&field_longitude_value%5Bmin%5D=&field_phenomene_target_id=&field_type_de_cas_target_id=All&order=field_date_d_observation&page=5&sort=asc
19.
Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/fr/cas/1976-11-02763
20.
Source: cnes-geipan.fr
Link:https://cnes-geipan.fr/fr/cas/2008-07-02443
21.
Source: cnes.fr
Link:https://cnes.fr/projets/geipan
22.
Source: cnes.fr
Title: ovnis pan
Link:https://cnes.fr/dossiers/ovnis-pan
23.
Source: cnes.fr
Title: serie ovnis 5 choses savoir geipan
Link:https://cnes.fr/actualites/serie-ovnis-5-choses-savoir-geipan
24.
Source: academieairespace.com
Link:https://academieairespace.com/event/geipan-studies-uaps-ufos/?lang=en
Additional References
25.
Source: 20minutes.fr
Link:https://www.20minutes.fr/high-tech/sciences/4215259-20260329-demarche-scientifique-comment-enqueteurs-geipan-tentent-expliquer-cas-ovnis-france
26.
Source: facebook.com
Link:https://www.facebook.com/ScienceetVieMag/posts/comment-le-geipan-trie-t-il-les-t%C3%A9moignages-dovni-/1240982891514879/
27.
Source: facebook.com
Link:https://www.facebook.com/parisnormandie/videos/ovnis-les-quatre-cas-non-expliqu%C3%A9s-en-normandie/1373078927104298/
28.
Source: instagram.com
Link:https://www.instagram.com/reel/DVqX44skldR/
29.
Source: nationalgeographic.fr
Link:https://www.nationalgeographic.fr/espace/france-qui-se-cache-derriere-le-geipan-le-bureau-des-ovnis-en-france-etrange-enquetes
30.
Source: carteovni.fr
Link:https://carteovni.fr/blog/statistiques-geipan
31.
Source: instagram.com
Link:https://www.instagram.com/reel/DYfeV33sBGl/
32.
Source: facebook.com
Link:https://www.facebook.com/groups/238876956176484/posts/580361445361365/
33.
Source: facebook.com
Link:https://www.facebook.com/humanite.fr/posts/un-millier-de-cas-dobservations-%C3%A9tranges-34-restent-inexpliqu%C3%A9es/1406374151534600/
34.
Source: agriculteur-normand.com
Link:https://www.agriculteur-normand.com/bovins?page=1
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