The Aviano/Pordenone UFO: The Story Behind the Most Debated UFO Footage

Many have seen the footage. Far fewer know its tangled backstory.Is it an early‑2000s hoax or a genuine recording of an unknown craft?

The video first attracted international attention in 2005, when Italian-American researcher Paola Harris presented a fourth-generation copy at the 36th Annual MUFON International Symposium in Denver, Colorado. Harris, who was then living in Italy, stated that the footage had been supplied by an anonymous source who associated it with the Aviano area. The identity of the original cameraman has never been established, and the severe degradation caused by repeated copying has made detailed analysis difficult.

The video:

The so‑called Aviano UFO video resurfaces online every few years, sparking the same polarized reactions: some insist it is a crude CGI fake, while others defend its authenticity as evidence of a real, unexplained object. Despite its popularity, the history of the footage, and the investigations surrounding it, remain largely unknown to most viewers.

Also referred to as the Pordenone UFO, this video has a surprisingly intricate timeline and a long trail of debate behind it.

How the Aviano UFO Video Emerged

The story begins with an anonymous VHS tape.

The footage was allegedly recorded in 2003 near the NATO air base in Aviano, Italy. In 2004, a VHS copy of the video was sent anonymously to the well‑known Italian ufologist Antonio Chiumiento, accompanied by a brief but ominous message:

“Ho paura” (“I am afraid,” in Italian).

The tape was subsequently sent to other Italian ufologists in the following months.

Despite receiving the material in 2004, Chiumiento chose to keep the video confidential at first, allowing time for further analysis. The footage only became public in 2005.

That year, Italian‑American journalist and ufologist Paola Harris presented the video at two major events:

The versions that later circulated on YouTube were largely derived from a DVD of her MUFON presentation. Harris stated that she received the video from an anonymous source, explicitly clarifying that it was not given to her by anyone in the military, contrary to early rumors.

Paola’s statement:

This old video, which I have been showing for three years, was not provided to us, Italian researchers, by the Air Force. It is not one of our technologies. I had the tape analyzed in Hollywood by my friends Rob and Rebecca Gordon, who had the contacts and financial means to do so. This is a seventh-generation cassette tape. It was given to us without explanation. It is a real object that we see in the film. It was shown in my presentations at MUFON and in Laughlin, and then someone uploaded it to YouTube and Google. The video was filmed in the Veneto region, in Italy, in a place called Ponte di Giulio, near the NATO airbase in Aviano. It is a dry riverbed where the military was conducting maneuvers, and the cameraman had set up a tripod and was waiting for the object to emerge from the forest. I doubt that aliens appeared in that location.

Paola Harris’ Clarifications

In response to growing doubts over the tape’s origins and credibility, Harris published a statement to address the controversy. In summary, she emphasized that:

Harris also described the filming location: a dry riverbed in the Veneto region, near a place called Ponte di Giulio, close to the Aviano NATO air base. According to her, military exercises were being conducted in the area, and the cameraman had set up a tripod, apparently waiting for the object to emerge from the treeline. Despite this, Harris herself expressed skepticism that the object was extraterrestrial, suggesting instead that it might have been some kind of advanced terrestrial technology.

On‑Site Investigation: Pinpointing the Location

To test the claims about the setting, Italian researchers and ufologists Antonio Pischiutti and Stefano Saccavino conducted a field investigation at the supposed filming location. They visited the left bank of the Cellina River, near Ponte di Giulio in Montereale Valcellina.

Their work, published online and now Archived here.

The investigation focused on:

Pischiutti and Saccavino concluded that the location shown in the footage is consistent with an area near the SS 251 highway, a region of archaeological and military relevance, not far from Aviano Air Base.

Based on their calculations, they estimated that the object was approximately 6 to 8 meters in diameter. It appeared to move from north‑northwest to south‑southeast, crossing the frame rapidly before disappearing. If genuine, such behavior raises questions about the craft’s propulsion and nature. However, the poor quality of the available footage severely limited their ability to reach definitive conclusions.

Digital Analyses and Suspicions of a Hoax

In parallel, Giuseppe Garofalo, from the SIRIO Nucleus, examined three different versions of the Aviano video available online. His analysis highlighted several suspicious features, including:

Garofalo was particularly critical of a third, higher‑quality version of the video, which includes on‑screen elements such as a timer. These additions, in his view, cast additional doubt on that version’s authenticity. At the same time, he noted that the complex movement of the object would not be trivial to reproduce using early‑2000s CGI alone, leaving room for the hypothesis of a filmed model or physical artifact integrated with digital effects.

The Blur Argument: “One Is Real, the Other Is Not”

One of the more striking fraud claims came from a user known as “onthefence” on the OpenMindsForum (unfortunately, their full analysis appears to have been lost and is not easily retrieved, even via WebArchive).

According to this researcher, the alleged UFO displays a blur pattern that differs significantly from the background. While some took this as evidence of a hastily rendered 3D model, onthefence argued that the discrepancy was more likely related to the contrast difference between the bright object and the darker landscape in the original footage.

Given the very low quality of the early online uploads, he argued that typical “pulsing” artifacts from quick 3D rendering would probably not be visible. Instead, he interpreted the mismatched blur as strong evidence that the saucer and the background were two separate layers: one genuine, one not. In short, the video appears to show a composite image rather than a single, coherent recording.

A Military Prototype?

Despite the fraud accusations, Paola Harris has maintained a different position. When she presented the video at the MUFON Symposium in Denver in 2005, she suggested that the object was likely a remotely controlled military prototype, not an alien spacecraft.

According to Harris, further analysis conducted in Boulder, Colorado, treated the object as a physical craft, not as CGI. A 3D reconstruction by Alberto Forgione supported this, depicting the craft with movable triangular thrusters, implying an advanced, deliberate design rather than a simplistic hoax.

Media Coverage and Circulation Online

In 2004, the Italian regional TV channel Antenna Tre Nordest, based in Treviso (Veneto region), aired a report on the footage, helping to spread awareness of the case in Italy.

The recording of that news report can be watched here.

Some of the oldest copies of the Aviano UFO video available online today appear to have been uploaded to YouTube nearly two decades ago. You can watch it here.

Over time, various stabilized, enhanced, and zoomed versions have appeared, each adding new layers of interpretation, but not necessarily more clarity.

The Alleged Witness: Stefan’s Testimony

In 2019, a Swiss YouTube channel dedicated to UFO sightings featured an interview with an alleged witness to the Aviano case. The man, an Austrian named Stefan, claimed that he was traveling through Europe with his wife and son when he and his son saw the Aviano UFO at the same time it was filmed from the riverbed. That interview can be watched here.

Stefan asserted that the video is authentic and matches what he personally observed. However, his testimony remains impossible to independently verify. There is no definitive way to confirm whether he genuinely witnessed the event, misinterpreted something, or is simply repeating information he encountered later.

An Unresolved Mystery

In the end, the Aviano UFO case sits in a grey zone.

What we do not have is the original, first‑generation recording or a fully documented chain of custody. The surviving copies are degraded, incomplete, and sometimes modified. This makes a final judgment extremely difficult.

As things stand, we cannot say with absolute certainty whether the Aviano UFO video is a clever hoax, a misidentified secret prototype, or something even stranger. The evidence is limited, the material fragmentary, and the investigations, while sincere, are ultimately inconclusive.

What can be said with confidence is that the story behind this footage, and the decades‑long debate it sparked, make the Aviano UFO one of the most intriguing and enduring cases in modern ufology.