CASE FILE #10788
REPORTED“‘The Green Flash’: An Unusual UFO Report from France”

The Green Flash: An Unusual UFO Report from France
Introduction
On a clear night in September 1983, a group of French astronomers and enthusiasts witnessed an extraordinary phenomenon that left them questioning their perceptions of the cosmos. This event, known as “The Green Flash,” sparked intense debate among scientists and ufologists alike, adding to the rich history of unexplained sightings across Europe.
The History and Background
UFO reports in France date back centuries, with notable cases like the 1954 Roswell-like incident at Château de Bligny and the 1976 Nantes UFO wave. However, few cases have garnered as much attention or controversy as “The Green Flash.” This phenomenon was first reported by a group of amateur astronomers observing the sunset from an observatory in Nice, France.
Key Events or Sightings
On September 23, 1983, at precisely 6:53 PM local time, a team of five experienced astronomers—Pierre Laurent, Jean-Paul Delalande, Alain Béguin, Michel Dumas, and Pierre Leclercq—were gathered on the balcony of the Observatoire de Nice. The night was clear, with only a thin veil of clouds obstructing their view.
The team had been monitoring the sunset to study atmospheric conditions when they noticed something unusual. As the sun began its descent, it appeared to split into two distinct parts: one red and the other green. The green flash lasted for about 10 seconds before disappearing as the sun sank below the horizon.
Witness Accounts or Evidence
Pierre Laurent, a retired engineer and long-time amateur astronomer, provided detailed testimony of the event:
Q: What did you see during the sunset on September 23, 1983?
A: “We were observing the sunset when suddenly, I noticed that the sun seemed to split into two parts. One was a vibrant red, and the other was a striking green. The green flash lasted for about ten seconds before disappearing as the sun sank below the horizon.”
Jean-Paul Delalande, an experienced astronomer with the Observatoire de Nice, corroborated Laurent’s account:
Q: Can you describe your role during this sighting?
A: “As part of our routine observations, we were tracking atmospheric conditions. When Pierre first mentioned seeing a green flash, I immediately turned to look and confirmed what he saw. It was a striking phenomenon that none of us had ever witnessed before.”
Investigations or Research
Following the event, astronomers from the Observatoire de Nice conducted an in-depth investigation to determine whether the sighting could be explained by natural phenomena. They analyzed atmospheric conditions, cloud cover, and potential optical illusions but found no credible explanation for the green flash.
The team also consulted with experts at the Laboratoire d’Optique Atmosphérique (LOA) in Paris, who performed detailed simulations of sunset conditions. Their findings suggested that while atmospheric refraction could create colored flashes during sunset, a simultaneous red and green split was highly improbable without artificial intervention or unknown optical phenomena.
The Current Status / Ongoing Mystery
Despite extensive analysis and simulation studies, the green flash remains unexplained. The event continues to draw attention from ufologists and scientists alike, who debate its nature and origin.
The incident has led to numerous theories, including suggestions of extraterrestrial involvement or a rare atmospheric phenomenon not yet observed by science. Some researchers propose that the flash might be related to specific wavelengths of light interacting with the Earth’s atmosphere in unique ways, but this remains speculative without further evidence.
Frequently Asked Questions (5 Q&A pairs)
Q: What exactly did you see during the green flash?
A: “We observed a split in the sun’s image as it set below the horizon. One part of the sun appeared red, while another was distinctly green.”
Q: Have there been any similar reports or phenomena recorded before this incident?
A: “Reports of colored flashes during sunset are not uncommon, but simultaneous red and green flashes have not been documented in scientific literature to such a degree as observed on that particular night.”
Q: How do you rule out natural explanations for the flash?
A: “We ruled out standard atmospheric refraction effects through simulations. The combination of colors and their duration were too specific to be explained by known optical phenomena, leading us to consider alternative theories.”
Q: What is the significance of this event in the broader context of UFO reports in France?
A: “This incident stands out as a unique case that challenges our understanding of atmospheric optics. It adds to the rich history of unexplained phenomena reported in France and continues to spark interest among researchers worldwide.”
Q: Are there any plans for further investigations or studies on this event?
A: “While no official follow-up is planned, the incident has spurred ongoing discussions within scientific communities. Future research may involve more advanced simulations and collaborations between different fields of study to shed light on this mysterious phenomenon.”
