Summary
The modern UAP disclosure conversation is led by credentialed academic scientists and former senior government officials, not amateur enthusiasts. Avi Loeb (Harvard astronomy chair) and Garry Nolan (Stanford pathologist) anchor the academic side. Jon Kosloski (current AARO director, whose office sets the government's evidentiary baseline), Christopher Mellon (former Deputy Assistant Secretary of Defense for Intelligence), Luis Elizondo (former AATIP director), David Grusch (sworn Congressional whistleblower), and Sean Kirkpatrick (former AARO director) anchor the government side. Since June 2026, Loeb chairs a White House-tasked UAP Science Advisory Council whose members include Nolan and the professional skeptic Michael Shermer. The Galileo Project at Harvard and the Sol Foundation at Stanford provide formal academic infrastructure for the field.

The modern UAP disclosure conversation is shaped by a small group of credentialed researchers, former intelligence officials, and academic scientists. Their work — published in peer-reviewed journals, presented at universities, and delivered as sworn Congressional testimony — represents the institutional foundation beneath the headlines. Understanding who these people are, where they work, and what they've actually said is essential context for evaluating any disclosure announcement. For the broader institutional context, see our UAP disclosure timeline, our reference on international UAP programs, and the deeper history of the field in our coverage of SETI: the Search for Extraterrestrial Intelligence.

The following profiles cover the most consequential figures currently shaping the field. Each entry summarizes their credentials, institutional position, and primary contributions to the public conversation.

Academic Scientists

Avi Loeb
Frank B. Baird Jr. Professor of Science · Harvard University
Loeb is the longest-serving chair of Harvard's Astronomy Department and former chair of the National Academy of Sciences' Board on Physics and Astronomy. He founded the Galileo Project at Harvard in 2021 to search systematically for technosignatures and study interstellar objects with observatory-grade instrumentation, has authored over 1,000 peer-reviewed papers, and has been the most prominent scientific advocate for treating extraterrestrial technology as a serious research hypothesis. His analyses of 'Oumuamua and 3I/ATLAS generated significant debate; on 3I/ATLAS, the SETI Institute's June 2026 Allen Telescope Array search found no technosignature. In June 2026, Loeb was tasked by the White House, AARO, ODNI, and the FBI to assemble and chair the UAP Science Advisory Council, an approximately eleven-member panel applying scientific analysis to unclassified UAP data in support of the government's interagency UAP Governance Board — his most consequential institutional role and the first formal scientific advisory structure attached to the disclosure process. His public register varies markedly by venue. In the day after PURSUE's launch he completed more than twenty interviews and described feeling "like a kid in a candy store." On the record as council chair, his position is more restrained: he has stated that the council holds no access to classified material and no legal authority, that his working null hypothesis is that unidentified objects are human-made and operated by adversarial nations, and that the material disclosed to date "is not convincing as being not human-made or natural." Both registers are authentic; the latter is the one that carries institutional weight.
Garry Nolan
Rachford and Carlota A. Harris Professor · Stanford University School of Medicine
Nolan is a Stanford pathologist and immunologist with over 300 peer-reviewed publications and an h-index above 100. He has been involved in the analysis of alleged UAP-related materials and biological samples reportedly associated with anomalous encounters, including imaging studies of brain tissue from witnesses claiming exposure events. Nolan has spoken publicly about CIA and Department of Defense involvement in studying these cases and has emphasized that the materials he has examined demonstrate isotopic ratios outside known terrestrial provenance. His credibility as a senior Stanford faculty member with no prior involvement in UFO research has been particularly consequential. In June 2026 Nolan was named to the White House-tasked UAP Science Advisory Council chaired by Avi Loeb.
Michael Shermer
Publisher, Skeptic magazine · Member, UAP Science Advisory Council
Shermer is the founding publisher of Skeptic magazine, executive director of the Skeptics Society, and among the best-known professional skeptics in the United States. His inclusion on the White House-tasked UAP Science Advisory Council in June 2026 is notable in itself: a council assembled to lend scientific rigor to the disclosure process seated a figure whose career has been spent scrutinizing extraordinary claims. Shermer's presence functions as an internal check and is the clearest signal that the council was structured for evaluation rather than advocacy.
Jacques Vallée
Computer Scientist · Venture Capitalist · Astrophysicist
Vallée holds a PhD in computer science and worked as a principal investigator on the early ARPANET project and on NASA's first computerized map of Mars. His research on UAP spans more than five decades and includes work with the U.S. government's Stargate Program. He served as the real-life basis for the French scientist character in Steven Spielberg's Close Encounters of the Third Kind. Vallée's databases of historical UAP cases — particularly cases involving alleged physical effects — remain among the most rigorous compilations available. He has consistently argued for treating UAP as a phenomenon requiring scientific methodology rather than belief or skepticism.
Kevin Knuth
Associate Professor of Physics · University at Albany (SUNY) · Former NASA Researcher
Knuth is a former NASA research scientist who worked on the Mars Exploration Rover mission. His peer-reviewed analyses of UAP flight characteristics have appeared in journals including Entropy, where he has examined the propulsion implications of acceleration profiles documented in cases such as the 2004 Tic Tac encounters. Knuth represents the increasingly active community of physical scientists who treat UAP as a quantitative research subject deserving of standard physics analysis.

Former Government Officials

Harold "Hal" Puthoff
Physicist · Director, Institute for Advanced Studies at Austin · Former SRI International
Puthoff holds a PhD in electrical engineering from Stanford and conducted research at Stanford Research Institute (SRI International), where in the 1970s he co-led the CIA- and defense-funded Stargate program investigating anomalous cognition. He later founded the Institute for Advanced Studies at Austin and served as a science advisor to the Pentagon's Advanced Aerospace Weapon System Applications Program (AAWSAP), the program that produced the well-known studies of advanced aerospace threats. Puthoff is among the most credentialed physicists to engage publicly with the UAP question and sits on the advisory board of the Disclosure Foundation, the organization that in May 2026 compelled the National Security Agency to release more than 330 pages of formerly TOP SECRET UMBRA UAP records through a Freedom of Information Act appeal. His engineering and intelligence-community background has made him a recurring reference point in discussions of the physics and propulsion characteristics documented in declassified UAP material.
Tim Gallaudet
Retired U.S. Navy Rear Admiral · Former Acting Administrator, NOAA
Gallaudet is a retired Navy Rear Admiral and oceanographer who served as Acting Administrator of the National Oceanic and Atmospheric Administration (2018-2019) and as Commander of the Naval Meteorology and Oceanography Command. A Naval Academy graduate with a doctorate in oceanography, he is among the most senior former flag officers to engage publicly with the UAP question. He testified at the November 2024 House Oversight subcommittee hearing on UAP and has advocated for greater transparency, particularly regarding transmedium objects and underwater anomalies relevant to his oceanographic background. In a May 2026 interview tied to the PURSUE disclosure cycle, Gallaudet stated that he is "aware of higher order non-human intelligence" associated with the phenomena, citing data and material he reviewed during his classified government service. His credentials as a former senior naval officer and federal science administrator place his commentary in a distinct institutional category from civilian researchers, though his conclusions about non-human intelligence remain his own assessment rather than confirmed government findings. In June 2026 Gallaudet was named to the White House-tasked UAP Science Advisory Council.
Christopher Mellon
Former Deputy Assistant Secretary of Defense for Intelligence
Mellon served as Deputy Assistant Secretary of Defense for Intelligence under Presidents Clinton and George W. Bush, and as Minority Staff Director for the Senate Intelligence Committee. He played a central role in the 2017 release of the Pentagon UFO videos that catalyzed the modern disclosure cycle. Mellon has consistently maintained that the U.S. government possesses "hundreds if not thousands of photographs and videos" of UAP that the public has never seen. On April 29, 2026, Mellon told NewsNation's CUOMO: "It's not a nothingburger. It is categorically a real thing, a very real thing," emphasizing that U.S. agencies have been compiling UAP data since World War II and that thousands of military reports have accumulated since Congress mandated tracking. His combination of intelligence-community credentials and willingness to speak publicly has made him among the most consequential voices in the post-2017 conversation.
Luis Elizondo
Former Director · Advanced Aerospace Threat Identification Program (AATIP)
Elizondo is a former U.S. Army counterintelligence officer who directed the Advanced Aerospace Threat Identification Program at the Pentagon — the predecessor program to AARO. He resigned in 2017 in protest over what he characterized as institutional resistance to UAP research and subsequently became a public advocate for transparency. His 2024 book Imminent presented a senior intelligence officer's perspective on the phenomenon. Elizondo has provided sworn Congressional testimony and remains one of the most cited former officials in UAP coverage.
David Grusch
Former Intelligence Officer · National Reconnaissance Office and National Geospatial-Intelligence Agency
Grusch is a former combat officer in Afghanistan and former intelligence official with the NRO and NGA, where he served as the NGA's representative on the UAP Task Force. In July 2023 he provided sworn Congressional testimony alleging that the U.S. government operates a multi-decade program to retrieve and reverse-engineer non-human craft, and stated under oath that he had been told of biologics recovered from such craft — the most significant publicly sworn allegation of a recovery program by a credentialed intelligence officer to date, delivered with Inspector General whistleblower protections. The Pentagon has consistently disputed the claims and AARO has reported finding no verifiable evidence for them. Through 2026 Grusch has remained the movement's central witness: at a June 9 Capitol press event he renewed his claims and described the government as aware of "a continuum" of non-human intelligence, without elaborating or presenting evidence. Following the July presidential directive waiving nondisclosure agreements for disclosures to PURSUE, and the Department of War's September 14 legal waiver extending that relief to Special Access Program agreements, Grusch and two other claimed witnesses publicly petitioned the President on September 19 for a broader waiver permitting disclosure to the public rather than to the government, stating that the PURSUE channel does not meet their objective. As of this writing he has not stated that he has provided his information through the channel now legally open to him.
Jon Kosloski
Director · All-domain Anomaly Resolution Office
Kosloski has directed AARO since August 2024, arriving on detail from the National Security Agency, where he spent most of his career in the Research Directorate leading advanced research in optics, computing, and cryptographic mathematics. He describes himself in Senate testimony as "a researcher at my core, with an academic background in mathematics, physics, and engineering." He succeeded the office's inaugural director, Sean Kirkpatrick, and is the official most directly responsible for the government's evidentiary position on UAP. Under his direction AARO delivered its FY2025 annual report in July 2026 — resolving the substantial majority of 319 new cases as balloons, birds, aircraft, drones, and satellite flaring, flagging nine for further analysis, and stating that no resolved case indicates advanced foreign capabilities or breakthrough technologies — and moved to acquire access to a private historical archive to fulfill its congressionally mandated review of the record since 1945. A June 2026 AARO report under his name, cited in the third PURSUE tranche, has been characterized as assessing that roughly 40 percent of analyzed cases remain unresolved. His most-quoted public statement, to TIME in August 2026: "Great claims require great evidence, and the evidence just isn't there yet." He is the sitting counterpart to the disclosure movement's claimed witnesses, and his office's findings are the standing institutional baseline against which every release is measured.
Sean Kirkpatrick
Inaugural Director · All-domain Anomaly Resolution Office (2022–2023)
Kirkpatrick was the inaugural director of AARO from July 2022 until his retirement in December 2023. A physicist by training with prior senior intelligence community roles, he led the formal Pentagon investigation into UAP during a critical period of public attention. Kirkpatrick has consistently maintained a skeptical institutional position, arguing that the vast majority of UAP cases have or will have prosaic explanations and that no verifiable evidence of extraterrestrial technology has crossed his desk. In May 3, 2026 commentary, Kirkpatrick characterized the Trump administration's disclosure promises as "bluster" and a "shiny object." Following the May 8 launch of the PURSUE program and the release of the first ~160 declassified files at war.gov/UFO, Kirkpatrick told the Associated Press that there was "nothing unexpected" in the release and that, without analysis, the released material would "only serve to fuel more speculation, conspiracy and arm-chair pseudoscience." His perspective represents the official institutional counterweight to claims made by Grusch, Mellon, and Elizondo.

Institutional Programs

The Galileo Project
Harvard University · Founded 2021
Founded by Avi Loeb at Harvard, the Galileo Project is the most prominent academic research initiative dedicated to systematically searching for and analyzing potential extraterrestrial technology. The project operates dedicated observatories with multispectral instrumentation and applies machine learning to filter UAP candidates from natural and human-made objects. Its methodology — explicitly transparent, peer-reviewed, and observatory-grade — represents an attempt to move UAP study into mainstream astronomy and physics.
The Sol Foundation
Stanford University-affiliated · Founded 2023
Co-founded by Garry Nolan and political scientist Peter Skafish, the Sol Foundation operates as a Stanford-affiliated policy and research institute focused on UAP. The foundation hosts annual symposia bringing together academic researchers, former government officials, philosophers, and policy specialists. Its work emphasizes the policy and societal dimensions of potential disclosure alongside the scientific investigation.

What This Reveals

Two patterns emerge from the contemporary research landscape. The first is institutional credibility: the modern UAP conversation is no longer driven by amateur enthusiasts. Harvard's longest-serving astronomy department chair, a senior Stanford pathologist with hundreds of peer-reviewed publications, former Deputy Assistant Secretaries of Defense, and inaugural directors of Pentagon investigation programs are all on the record. Their credentials are independently verifiable and their institutional affiliations are unambiguous.

The second pattern is genuine disagreement among the credentialed. Grusch alleges a multi-decade reverse-engineering program under oath. Kirkpatrick — the man who ran the official investigation — finds no verifiable evidence of such a program. Both are credentialed. Both are speaking publicly. Both have institutional reputations to protect. This disagreement is not noise — it is the actual state of the evidence as it stands today, and it is precisely why disclosure matters: only the release of underlying material can resolve which framing is correct.

For the First.Contact domain, this researcher landscape provides the institutional backbone of the topic's relevance. Whatever is ultimately confirmed or denied, the conversation will be mediated through these scientists, officials, and academic programs. The domain functions as the singular communications address regardless of how the disagreement among researchers ultimately resolves. To understand how their work connects to current developments, see our UAP disclosure timeline and our coverage of 3I/ATLAS, where Avi Loeb's analysis is currently most active.

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