UFO vs UAP: Why the Language Changed

For seventy-five years, three letters carried the weight of the strangest story in modern history. UFO. Unidentified Flying Object. A term that started life in a U.S. Air Force filing cabinet and ended up on lunch boxes, B-movie posters, and the lips of every late-night radio host from one coast of America to the other.

Then, quietly and without much fanfare, the language shifted. Today, senators say UAP. The Pentagon says UAP. Former Navy pilots, Air Force intelligence officers, NASA, and now even Hollywood documentaries say UAP. UFO is still around — it always will be, it's far too embedded in the culture to disappear — but for the institutional record, the official paperwork, and the serious conversations in Congressional hearing rooms, it has quietly been retired in favour of its more clinical-sounding cousin.

So what actually changed? And why does it matter to those of us who have been paying attention to this subject since long before it became fashionable?

A word born in a Cold War office

Here is something most people don't realise. The word "UFO" wasn't invented by a science fiction writer, or a tabloid editor, or some carnival barker selling alien postcards out of a roadside stand in New Mexico. It came from a U.S. Air Force captain.

In 1952, Captain Edward J. Ruppelt — the first director of Project Blue Book at Wright-Patterson Air Force Base in Ohio — coined "Unidentified Flying Object" specifically to replace the term "flying saucer", which by that point had become a punchline. Ruppelt was, by every account I've read, a serious investigator who wanted a serious vocabulary for what was clearly a serious subject. He had inherited a mess of a research programme from his predecessors at Project Sign and Project Grudge, and he wanted to start over with language that didn't immediately conjure images of bug-eyed Martians and tinfoil hats.

The term "flying saucer", incidentally, came from a misquote. When civilian pilot Kenneth Arnold reported seeing nine objects moving in formation past Mount Rainier in June 1947 — the case generally regarded as the opening event of the modern UFO era — he described them as moving like a saucer skimming across water. He was describing the motion, not the shape. The objects themselves, he said, looked more like crescents or disks. The press, never letting accuracy get in the way of a good headline, ran with the wrong half of the sentence, and within weeks the entire country was talking about "flying saucers". The shape of an object that nobody had clearly seen was suddenly being argued about over kitchen tables from Maine to California.

So Ruppelt gave us UFO, and for a brief and shining moment, it actually worked. It carried the weight of officialdom. It sounded like something a man in a suit would write on a clipboard.

Then Hollywood happened. Then Close Encounters of the Third Kind. Then The X-Files. Then four decades of late-night infomercials, alien autopsy hoaxes, breathless paperback memoirs, and badly-printed Roswell t-shirts (not ours, obviously). By the time the 1990s rolled around, the three letters Ruppelt had chosen so carefully to lend credibility to the subject had become a kind of cultural shorthand for delusion, for fringe thinking, for the slightly embarrassing uncle at the dinner table.

That stigma had genuine consequences. Military pilots who saw something genuinely anomalous in their cockpit windows stopped filing reports, because to file a UFO report was to risk being quietly removed from the flight roster. Astronomers stopped publishing on the subject. Mainstream journalists stopped asking the difficult questions. The phenomenon itself, of course, didn't go anywhere. The language around it, however, had become radioactive, and that's a problem when you're trying to build a serious body of evidence.

And it wasn't just social pressure that kept people silent. Most people don't know this, but from 1954 onwards there was a regulation on the books, the Joint Army Navy Air Force Publication 146, known as JANAP 146, that made it a criminal offence for military or civilian pilots to publicly discuss UFO sightings that fell under its reporting framework. The regulation explicitly classified these sightings as information affecting the national defence of the United States, and it referenced the Espionage Laws — specifically 18 U.S. Code, Sections 793 and 794. Unauthorised disclosure of a UFO report filed under JANAP 146 carried a penalty of up to ten years in federal prison. Not a reprimand, not a note in your file — a decade in a cell, under the same laws used to prosecute actual spies. And this didn't just apply to Air Force pilots. It covered commercial airline pilots as well.

If a Pan Am captain saw something unexplainable at 35,000 feet and talked about it publicly, he was technically in violation of federal espionage law. That is how seriously the institutional machinery worked to ensure that the word UFO stayed inside official channels and out of public conversation. When people say the stigma was organic — that it was just Hollywood and tabloids that made the subject seem unserious — they're missing the fact that the suppression was, for decades, a matter of written policy backed by the threat of prosecution.

It's also worth noting, as a kind of grim footnote, that when Project Blue Book was officially closed in 1969 with the public conclusion that UFOs posed no threat to national security, a memo from General Carroll Bolender stated that UFO reports which did affect national security were made "in accordance with JANAP 146" and were "not part of the Blue Book system." In other words, the serious reports never stopped being collected. They just moved to a separate, classified pipeline that the public was told didn't exist. The language around UFOs wasn't just stigmatised by culture. It was actively managed by institutions that had every reason to keep the subject quiet.

The quiet switch

The pivot away from UFO really began in 2019. The U.S. Navy, which by that point was dealing with a steady stream of unexplained encounters off both coasts — the 2004 USS Nimitz "Tic Tac" event off Southern California being the most famous, followed by the 2015 USS Theodore Roosevelt encounters off the East Coast that gave us the "Gimbal" and "GoFast" videos — formally adopted "Unidentified Aerial Phenomena" in its internal reporting protocols. Navy spokesman Joseph Gradisher told the Washington Post that the choice of phrasing was entirely deliberate. They wanted, as he put it, a "basic descriptor" without the cultural baggage that UFO had accumulated over seven decades.

(Image Credit: U.S. Department of Defense, declassified 2020)

In June 2021, the Office of the Director of National Intelligence delivered its landmark "Preliminary Assessment: Unidentified Aerial Phenomena" report to Congress. That was the moment UAP went officially on the record, in a document submitted to the legislative branch of the United States government. There was no longer any ambiguity about what the institutional terminology was going to be.

Then, in December 2022, the Pentagon went one step further and quietly changed what the "A" in UAP actually stood for. It no longer meant Aerial. It now meant Anomalous. The reasoning was pragmatic. Encounters were being reported in the water. In space. Transitioning between mediums in ways that no known aircraft can perform. The word "flying" had become a limiting factor, and the new acronym needed to be broad enough to cover whatever the next sensor capture happened to record. NASA followed suit a month later, and by early 2023 the new terminology was effectively the institutional standard across the entire U.S. federal government.

The rebrand was deliberate, and on its own terms it has worked rather well. When a fighter pilot files a report on a UAP, it reads like a sensor log. When the same pilot files a report on a UFO, it reads like something from a 1970s tabloid. The Pentagon understood, perhaps for the first time in fifty years, that better data depends on more reports, and more reports depend on people feeling safe enough to file them in the first place.

The big names and the new vocabulary

The terminology shift has been driven by some of the most credentialed voices the field has ever produced, and it's worth naming them, because credibility in this subject is built one named source at a time.

Commander David Fravor, the Navy pilot at the centre of the 2004 USS Nimitz "Tic Tac" encounter, testified before Congress in July 2023 using the word UAP throughout. Alongside him sat Ryan Graves, the former F/A-18 pilot who now runs Americans for Safe Aerospace, and who has made the eradication of stigma his explicit professional mission. Graves told lawmakers, in language I think will be quoted for years to come, that the stigma attached to this subject is "real and powerful and challenges national security". That is a Navy aviator, on the record, in a Congressional hearing room, making the case that the cultural baggage around the word UFO has become a genuine threat to the safety of American airspace.

Beside them was David Grusch, the former Air Force major and National Reconnaissance Office intelligence officer whose testimony on the same day became one of the most extraordinary moments in the history of this subject. Grusch told Congress, under oath, that the U.S. government has been running what he described as a "multi-decade UAP crash retrieval and reverse-engineering program" to which he had been denied access despite his security clearances. He used the term UAP throughout, naturally and without hesitation, because that was the language of his actual job — he had served as his agency's co-lead on UAP and trans-medium object analysis. The man had it in his job title.

(Image Credit: Still from C-SPAN, House Oversight Subcommittee Hearing, July 26 2023)

Behind these public-facing figures stand the longer-tenured voices of the community. Jacques Vallée, the French computer scientist and astronomer whose work has quietly shaped the serious study of this phenomenon for more than half a century, has spent decades arguing that the field needs scientific language and scientific methods, and his influence on the rebrand is hard to overstate. Christopher Mellon, the former Deputy Assistant Secretary of Defense for Intelligence, now chairs the Disclosure Foundation and has become one of the most articulate and persistent public advocates for the UAP framing. Luis Elizondo, the former head of the Pentagon's earlier UAP programme, has been on the same page since he went public in late 2017 with the now-famous Navy gun-camera footage.

Not everyone in the community has been happy about the change, and I have a certain amount of sympathy with the dissenters. A vocal minority argues, with some justification, that "UFO" should be defended rather than retired, because the rebrand allows institutions to redefine the phenomenon on their own terms and quietly remove it from the cultural conversation that built this whole field in the first place. There's a real point in there. The word UFO has earned its place in this history. Kenneth Arnold's disks over Mount Rainier in 1947, the Belgian Wave of 1989–1990, the Phoenix Lights in 1997, the multiple incidents of UFOs tampering with nuclear missile silos at Malmstrom Air Force Base in 1967 — all of these happened under the banner of UFO, and the witnesses to those events deserve to have their language honoured.

The truth, as so often, is probably simpler than either side wants to admit. Both terms describe the same underlying reality. UFO is the cultural word. UAP is the institutional word. One belongs to the witnesses and the community that has been carrying this subject for three generations. The other belongs to the paperwork, the hearings, and the slowly-grinding wheels of disclosure.

The current moment

The conversation has changed faster in the last three years than it changed in the previous fifty, and most of the credit belongs to a small and stubborn group of legislators who have been refusing to let this issue die.

Representative Tim Burchett of Tennessee is probably the loudest of them, and certainly the most quotable. Burchett has been working on this since 2023, when he co-organised the original July hearing that put Grusch, Fravor and Graves on the public record. In April of this year he told Newsmax, in his usual no-nonsense style, that the classified briefings he has personally received on the subject contain information that, if shared with the public, would leave the country "unglued". He has co-introduced the UAP Transparency Act, which would require declassification of all federal documents related to the subject, and he has made it abundantly clear that he intends to keep pushing until something gives.

Beside him sits Representative Anna Paulina Luna of Florida — a former Air Force veteran herself — who now chairs the House Oversight Task Force on the Declassification of Federal Secrets. Luna chaired the September 2025 hearing on "Restoring Public Trust Through UAP Transparency and Whistleblower Protection", which featured testimony from veteran investigative journalist George Knapp, the reporter who broke the Bob Lazar story back in 1989. More recently, Luna has set an April 2026 deadline for the Department of Defense to hand over forty-six specific UAP videos that whistleblowers have told the task force exist in government possession, and which have not yet been released. That deadline represents one of the most concrete near-term tests of whether the executive branch's disclosure promises will actually translate into documents on the table.

(Image Credit: US House of Representatives, Public domain, via Wikimedia Commons)

Working alongside them is Representative Eric Burlison of Missouri, who has perhaps been the most procedurally aggressive of the three. Burlison appeared on the WEAPONIZED podcast with Jeremy Corbell and George Knapp in late 2025, where he openly floated the possibility of using the subcommittee's subpoena power to compel testimony from witnesses the government has been shielding behind classification walls. "Tim [Burchett] and I and Anna [Paulina Luna] can get our committee to drop a motion to actually subpoena these [witnesses], and it would be one motion", he said. That is the language of legislators who have run out of patience with polite requests and are starting to think in terms of forced disclosure.

In November 2025, the documentary The Age of Disclosure arrived on Prime Video featuring on-the-record interviews with thirty-four senior current and former U.S. government officials, including Secretary of State Marco Rubio, Senator Kirsten Gillibrand, former Director of National Intelligence James Clapper, Commander David Fravor, Ryan Graves, Christopher Mellon, Luis Elizondo, the physicist Hal Puthoff, and Stanford immunology professor Garry Nolan. Oliver Stone called it "a once-in-a-generation cultural flashpoint", and for once I don't think the hyperbole is unwarranted. The film makes the argument, in front of a mainstream Prime Video audience, that the phenomenon is real and that a long-running secrecy regime has been keeping it from the public for the better part of eighty years.

(Image Credit: Promotional material, The Age of Disclosure, dir. Dan Farah, 2025)

Then, in February 2026, President Trump publicly pledged to direct the release of government UAP files. Defense Secretary Pete Hegseth confirmed in subsequent press appearances that the Pentagon intends to comply with whatever executive order materialises. The White House press office, asked by a journalist for a comment on the disclosure timeline, replied with a two-word email — "Stay tuned!" — followed by an alien emoji.

That tune-in arrived on May 8, 2026, when the Pentagon launched the Presidential Unsealing and Reporting System for UAP Encounters - PURSUE - releasing over 160 never-before-seen files, photographs, videos, and historical documents to the public with no security clearance required. A second tranche was confirmed within days and then released on May 22, with Pentagon spokesperson Sean Parnell stating that additional materials are "actively being processed for publication."

There will be ongoing tranches of files released at regular intervals. The promise of transparency, for the first time in eighty years, appears to be producing actual documents.

Whether this is the much-mooted "soft disclosure" talked about in recent years accelerating is yet to be seen. But you can be a hardened sceptic and still notice that this is not, by any reasonable standard, the way governments behave about subjects that aren't real.

And on June 12, 2026, the word "disclosure" will appear on cinema advertising worldwide when Steven Spielberg's Disclosure Day opens in theatres. The director who gave a generation its first serious cinematic engagement with the phenomenon through Close Encounters of the Third Kind in 1977 is returning to the subject almost fifty years later, this time with a film whose title is one of the community's own word. Whatever the film turns out to be, the fact that "disclosure" is now considered suitable branding for a major Universal Pictures release tells you something about how far the conversation has travelled.

Why this matters

The shift from UFO to UAP isn't just bureaucratic redecorating, and it isn't just the Pentagon trying to clean up the optics of an awkward dossier. It's the story of how a phenomenon that has been laughed at for the better part of a century is now, slowly and unevenly and not without resistance, being dragged into a more serious room.

The witnesses didn't change...the pilots didn't change...the objects in the sky and the sea and wherever else they happen to be didn't change. What changed is who was allowed to talk about them without losing their reputation, their security clearance, or their seat at the table.

For those of us who have been paying attention since long before Congress decided to hold hearings — the people who knew the Nimitz story before 60 Minutes covered it, who could place the Belgian Wave on a timeline, who had read Vallée before he was being quoted on Prime Video — both words still belong to us. UFO is the word we grew up with, and the word the witnesses used when nobody else would listen. UAP is the word that finally let the conversation into the building.

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