CORROBORATED
CF-GEI-20080501881 CORROBORATED

La Chapelle-sur-Erdre Green Fireball

CASE FILE — CF-GEI-20080501881 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
2008-05-30
Location Reported location of the sighting or event
La Chapelle-sur-Erdre, Loire-Atlantique, France
Duration Estimated duration of the observed phenomenon
Several seconds
Object Type Classification of the observed object based on witness descriptions
orb
Source Origin database or archive this case was sourced from
geipan
Witnesses Number of known witnesses who reported the event
1
Country Country where the incident took place
FR
AI Confidence AI-generated credibility score based on source reliability, detail consistency, and corroboration
85%
On May 30, 2008, at approximately 2:00 AM, a single witness in La Chapelle-sur-Erdre, Loire-Atlantique (department 44), observed a brief but striking aerial phenomenon. The witness reported seeing a green light in the sky that appeared as a luminous sphere or ball of light descending rapidly before disappearing abruptly after only a few seconds of observation. The sighting was reported to GEIPAN (Groupe d'études et d'informations sur les phénomènes aérospatiaux non identifiés), the official French government UFO investigation organization operated by CNES (Centre National d'Études Spatiales). The incident was catalogued as case 2008-05-01881 and assigned a classification of 'B', indicating a probable explanation with good consistency between the witness account and the hypothesis. No additional witnesses came forward, and no other information could be collected beyond the initial testimony. The early morning hour (2:00 AM) and the brief duration of the observation meant limited corroborating evidence was available. GEIPAN investigators concluded that the witness most likely observed the atmospheric entry of a meteorite, a phenomenon known to produce bright green flashes as meteoric material burns up in Earth's atmosphere.
02 Timeline of Events
02:00
Initial Observation
Witness observes a green light appearing in the night sky over La Chapelle-sur-Erdre
02:00 + seconds
Descent Observed
The luminous sphere appears to fall from the sky in a descending trajectory
02:00 + several seconds
Abrupt Disappearance
The green light suddenly disappears from view, concluding the observation after only a few seconds total duration
After May 30, 2008
GEIPAN Report Filed
Witness reports the sighting to GEIPAN for official investigation
Investigation Period
Classification Assigned
GEIPAN investigators analyze the testimony and assign classification 'B' - probable atmospheric reentry of meteorite
03 Key Witnesses
Anonymous Witness 1
Civilian observer
medium
Single witness who reported the sighting to GEIPAN. No additional biographical information available.
"Une boule de lumière semble tomber du ciel puis disparaît brusquement. (A ball of light appears to fall from the sky then disappears abruptly.)"
04 Analyst Notes -- AI Processed
This case presents the classic characteristics of a bolide or meteor event: brief duration (seconds), green coloration (common in meteoric atmospheric entry due to nickel and other metal content), apparent descent trajectory, and sudden disappearance. The 2:00 AM timeframe is consistent with typical meteor observation conditions when the sky is dark and the witness's eyes are adapted to low light. The single-witness nature and extremely brief observation period limit the evidentiary value of this case. The GEIPAN 'B' classification indicates investigators found good correlation between the witness description and natural astronomical phenomena. Green fireballs are well-documented astronomical events, though they gained particular notoriety in the American Southwest during the late 1940s and early 1950s. The abrupt disappearance is consistent with either the meteor burning out completely or passing below the horizon line. The lack of additional witnesses is not surprising given the early morning hour and the brief duration of the event, which may have concluded before most observers could react or turn their attention skyward.
05 Theory Comparison
BELIEVER ANALYSIS
SKEPTIC ANALYSIS
Possible Alternative Terrestrial Explanations
While the meteor explanation is most likely, a thorough analysis should consider other possibilities: a distant flare or signal flare with green tracer composition, though the 2:00 AM timing makes this less probable; debris from satellite reentry, though this would typically be tracked and announced; or even a perceptual phenomenon combined with a conventional aircraft. However, none of these alternatives fit the evidence as well as the meteorite hypothesis, particularly given the green color and brief duration.
06 Verdict
ANALYST VERDICT
This case is almost certainly a correctly identified meteor or bolide event. The witness description aligns perfectly with documented characteristics of atmospheric meteor entry: the distinctive green color from metallic combustion, the brief duration, the apparent falling trajectory, and the sudden disappearance. GEIPAN's classification as 'B' (probable meteorite atmospheric reentry) reflects high confidence in this explanation. While the single-witness testimony prevents absolute confirmation, there are no anomalous elements that would suggest anything other than a natural astronomical phenomenon. This case holds minimal significance for anomalous aerial phenomena research but serves as a useful example of proper astronomical event identification in the official French investigation database.
AI CONFIDENCE SCORE:
85%
07 Community Discussion
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