A PHOTO claiming to show a 1,000ft wide silver UFO flying over the US has been released by an infamous Pentagon whistleblower.

An airline pilot reportedly captured the image in 2021 while flying at an altitude of 21,000 feet above the Four Corners Monument, which links New Mexico, Arizona, Utah, and Colorado.

Luis Elizondo revealed the photo during a UAP Disclosure Fund event.

The spooky picture shows what looks like a circular object floating above the Earth.

The UAP Disclosure Fund posted the photo on X, commenting, “Captured near Four Corners at FL20 — estimated between 600 – 1,000 feet in diameter, silver-colored, and disc-like in shape.”

“Several speakers confirmed Department of Defense and Intelligence Community hold hundreds of similar UAP images + sensor files still classified.

“It’s time for full declassification and open scientific analysis.”

But sceptics were quick to challenge the discovery – claiming the photo merely showed irrigation circles that are common in desert climates.

UAP skeptic Mick West noted in a blog post that the shadow patterns on the hills do not support the assertion that the object is casting its own shadow.

This comes after Elizondo revealed a freaky photo of an alleged massive alien mothership back in October.

He described the supposed spacecraft as a “huge mini city floating in the sky.”

The picture appeared to show a distinctive disc shape, with a beaming light emanating from it’s bottom.

The shape is universally recognised as what we understand an alien UFO would look like, as it hovers menacingly in the air over a road.

The mysterious “mothership” was debuted at a private event in Philadelphia on October 28, by the former official at the Pentagon.

He said: “Guess what we caught in Romania in 2022? By the way, the U.S Embassy,’ as Elizondo told attendees at the paid event, gesturing to the photo: ‘That.’

“‘There’s a whole lot more here folks.

“We’re having pilots, military pilots and civilian pilots in Eastern Europe and in the Middle East, report what unimaginably seems impossible.

“I just want to give you kind of a small taste of what’s going on “behind the scenes.”

The startling claim directly links the US government to a deliberate alien cover-up, that he was exposing at the bizarre presentation.

Elizondo is a former Pentagon official best known for his work on its UFO program – now known as Unidentified Anomalous Phenomena.