{"type":"people","slug":"michael-shellenberger","title":"Michael Shellenberger","url":"https://disclosdex.com/people/michael-shellenberger","description":"Journalist who reported and testified about alleged UAP programs, including the disputed Immaculate Constellation memo","date":"1971-06-16T00:00:00.000Z","tags":["Journalist"],"updated":"2026-05-18T05:31:44.000Z","disclosureRating":4,"connectionCount":6,"content":{"markdown":"Michael Shellenberger is an American writer, journalist, and founder of Public who became a prominent UAP-disclosure figure after publishing anonymous-source reporting on alleged hidden UAP programs and later testifying before the House Oversight Committee.[^1][^2][^3]\n\nHis UAP record is best separated into three layers: confirmed public events, attributed allegations, and official denials. The confirmed record shows that Shellenberger published UAP stories in 2023 and 2024, appeared as a witness at the November 13, 2024 House hearing, and brought a 12-page document titled \"IMMACULATE CONSTELLATION program\" that was entered into the hearing record.[^1][^4][^5][^6] The disputed record concerns whether the alleged program existed, whether it was withheld from Congress, and whether the anonymous memo's source chain has been independently authenticated.[^5][^7][^8][^9]\n\n## Background\n\nBefore his UAP reporting, Shellenberger was known for writing on environmental policy, energy, homelessness, censorship, and technology politics. In the UAP context, the House committee identified him as the founder of Public, the outlet where he published his major UAP articles before the 2024 hearing.[^1][^2]\n\nShellenberger's first major UAP article at Public appeared on June 7, 2023, shortly after David Grusch's public claims about crash-retrieval programs. The article relied on military, intelligence, and contractor sources who alleged that the U.S. government or contractors possessed recovered non-human craft; it also acknowledged that Grusch had not publicly released photographs, videos, or documents proving those claims.[^2]\n\nOn September 25, 2023, Shellenberger, Andrew Mohar, and Phoebe Smith published a follow-up report saying anonymous sources claimed dozens of government or contractor whistleblowers had provided testimony or protected disclosures to inspectors general, AARO, or Congress. That article framed the developing UAP controversy as an oversight and whistleblower-channel issue, not simply a question of whether one witness was credible.[^3]\n\n## Immaculate Constellation\n\nOn October 8, 2024, Shellenberger published the first Public story naming an alleged unacknowledged UAP program called Immaculate Constellation. The article said anonymous sources alleged that the program housed classified UAP imagery, video, and documentation and was being hidden from Congress.[^4]\n\nThe central public artifact is a 12-page House support document titled \"IMMACULATE CONSTELLATION program.\" The document alleges that an unacknowledged Special Access Program consolidated UAP observations from tasked and untasked collection platforms, including imagery intelligence and measurement-and-signature intelligence. The House record proves that the document exists and was posted as a support document; it does not, by itself, prove the alleged program exists or authenticate the anonymous author's access.[^1][^6]\n\nShellenberger's written testimony repeated the memo's allegations and added his own source chain. He wrote that a UAP whistleblower described Immaculate Constellation as a central or parent USAP created after the 2017 New York Times AATIP story, that a former intelligence-community official anonymously confirmed the program to Public, and that another source later alleged White House-directed control through the Department of Defense.[^5] Each of those points remains an attributed claim rather than a confirmed public finding.\n\nThe memo also claims a \"verifiable chain of custody\" for UAP imagery collected by U.S. military assets and describes alleged incidents involving F-22 aircraft, naval vessels, orbs, discs, and other shapes. No underlying imagery, metadata, or public chain-of-custody package appears in the official public record linked from the House hearing page.[^1][^5][^6]\n\n## Congressional Testimony\n\nThe House Oversight Committee held the joint hearing \"Unidentified Anomalous Phenomena: Exposing the Truth\" on November 13, 2024. The committee repository lists Shellenberger as a witness and posted his written statement, truth-in-testimony form, biography, hearing transcript, and related support documents.[^1]\n\nDuring the hearing, Representative Nancy Mace stated that the 12-page document Shellenberger brought would be entered into the record. The transcript later identifies the witnesses, including Shellenberger, and notes that the document concerned Immaculate Constellation and U.S. government imagery intelligence.[^7]\n\nIn oral and written testimony, Shellenberger said his reporting was about congressional oversight as much as UAP interpretation. He argued that classified UAP material and alleged special-access programs were being shielded from normal legislative visibility, while also acknowledging that some UAP explanations could involve natural phenomena, foreign or domestic technology, disinformation, hoaxes, or conventional objects.[^5]\n\n## Official Denials and AARO Findings\n\nThe official counter-record is substantial. An ODNI FOIA release summarizing the press allegation states that DoD spokesperson Sue Gough denied that Immaculate Constellation existed or that evidence for it existed, saying DoD had no present or historical record of any SAP by that name.[^8] Shellenberger's written testimony includes the same denial as part of his own source narrative.[^5]\n\nAARO's March 2024 Historical Record Report predates the public Immaculate Constellation article but directly addresses the broader class of hidden crash-retrieval and reverse-engineering allegations. AARO assessed that named or described hidden UAP reverse-engineering programs provided by interviewees either did not exist, were misidentified sensitive programs unrelated to extraterrestrial technology, or resolved to an unwarranted and disestablished program.[^9]\n\nThe FY24 consolidated annual UAP report, released on November 14, 2024, said AARO received 757 UAP reports for the covered period and had resolved some cases as prosaic objects such as balloons, birds, unmanned aircraft systems, satellites, and aircraft. The report said no resolved case substantiated advanced foreign capabilities or breakthrough aerospace technologies, while 21 cases merited further analysis.[^10]\n\nAARO Director Jon Kosloski's November 2024 media roundtable preserved the same official posture: AARO said unresolved cases remained under review, but it had not verified extraterrestrial technology or non-human activity in the reports it had analyzed.[^11]\n\n## Source Chain and Authentication Limits\n\nThe public source chain begins with Shellenberger's Public reporting, runs through the ODNI memo that summarized the allegation and repeated DoD's denial, and then enters the congressional record through the November 13, 2024 hearing and House support document.[^1][^4][^6][^8]\n\nThe weakest link is authentication. The House record authenticates the document's publication into the hearing record, but the posted memo is anonymous and does not publicly verify the author's identity, access, or internal release-review path. For that reason, the profile-safe wording is that Shellenberger reported and testified about alleged hidden UAP programs, not that he exposed a verified Pentagon program.[^1][^5][^6][^8]\n\nIn April and May 2025, the podcast Weaponized presented a person identified as Matthew Brown as the previously anonymous Immaculate Constellation source. Episode descriptions later described Brown as a former Defense and State Department analyst and as the author of the Immaculate Constellation report.[^12][^13][^14] In September 2025, Weaponized again referred to Matt Brown as the document's author.[^15] Those episodes are important to the later public source chain, but they are not the same as official authentication by House, DoD, ODNI, or AARO.\n\n## Timeline\n\n| Date | Event | Source status |\n| --- | --- | --- |\n| 2023-06-07 | Shellenberger publishes a Public article saying anonymous military, intelligence, and contractor sources alleged possession of recovered non-human craft. | Attributed reporting by Shellenberger.[^2] |\n| 2023-09-25 | Public publishes a follow-up report saying anonymous sources alleged dozens of UAP whistleblowers had gone to inspectors general, AARO, or Congress. | Attributed reporting by Shellenberger, Andrew Mohar, and Phoebe Smith.[^3] |\n| 2024-03-08 | AARO releases Historical Record Report Volume I, rejecting the broader hidden extraterrestrial reverse-engineering narrative. | Official AARO position before the Immaculate Constellation story.[^9] |\n| 2024-10-08 | Shellenberger publishes the first Public article naming Immaculate Constellation. | Attributed anonymous-source reporting.[^4] |\n| 2024-11-06 | ODNI approves release of a one-page FOIA memo summarizing the press allegation and quoting DoD's denial. | Official record of government awareness and denial.[^8] |\n| 2024-11-13 | House Oversight holds the UAP hearing; Shellenberger testifies as a witness. | Official House hearing record.[^1][^7] |\n| 2024-11-13 | The 12-page \"IMMACULATE CONSTELLATION program\" document is entered into the House record and posted as a support document. | Official record of document submission, not proof of the allegation.[^6][^7] |\n| 2024-11-14 | AARO releases the FY24 annual UAP report covering 757 reports in the reporting period. | Official AARO/DoD annual report.[^10] |\n| 2025-04-29 to 2025-05-13 | Weaponized publishes a three-part interview presenting Matthew Brown as the Immaculate Constellation source or author. | Later public self-attribution, not official authentication.[^12][^13][^14] |\n| 2025-09-16 | Weaponized again describes Matt Brown as the document's author. | Later public attribution by the podcast.[^15] |\n\n## Current Assessment\n\nShellenberger's durable role is not that he proved Immaculate Constellation exists. His documented role is that he moved an anonymous-source allegation from Public reporting into a public congressional hearing where a related memo entered the House record. The claim remains contested because the memo and source chain have not been independently authenticated in the official public record, while DoD and AARO publicly deny or reject the underlying hidden-program narrative.[^1][^5][^6][^8][^9][^10]\n\n## References\n\n[^1]: [House Committee Repository: Unidentified Anomalous Phenomena: Exposing the Truth](https://docs.house.gov/committee/calendar/ByEvent.aspx?EventID=117721)\n[^2]: [Public: US Has 12 Or More Alien Spacecraft, Say Military And Intelligence Contractors](https://www.public.news/p/us-has-12-or-more-alien-space-craft)\n[^3]: [Public: Dozens Of Government UFO Whistleblowers Have Given Testimony To Congress, Pentagon, And Inspectors General, Say Sources](https://www.public.news/p/dozens-of-government-ufo-whistleblowers)\n[^4]: [Public: Pentagon Is Illegally Hiding Secret UFO Program From Congress, Whistleblowers Allege](https://www.public.news/p/pentagon-is-illegally-hiding-secret)\n[^5]: [Michael Shellenberger written testimony, House Oversight hearing, November 13, 2024](https://www.congress.gov/118/meeting/house/117721/witnesses/HHRG-118-GO12-Wstate-ShellenbergerM-20241113.pdf)\n[^6]: [House support document: IMMACULATE CONSTELLATION program](https://docs.house.gov/meetings/GO/GO12/20241113/117721/HHRG-118-GO12-20241113-SD003.pdf)\n[^7]: [House hearing transcript: Unidentified Anomalous Phenomena: Exposing the Truth](https://docs.house.gov/meetings/GO/GO12/20241113/117721/HHRG-118-GO12-Transcript-20241113.pdf)\n[^8]: [ODNI FOIA release: Description of alleged IMMACULATE CONSTELLATION program](https://www.dni.gov/files/documents/FOIA/DF-2025-00021-Immaculate-Constellation-descrp-from-UNCLASS-Press-22-Oct-2024.pdf)\n[^9]: [AARO Historical Record Report Volume I, March 2024](https://www.aaro.mil/Portals/136/PDFs/AARO_Historical_Record_Report_Vol_1_2024.pdf)\n[^10]: [FY24 Consolidated Annual Report on Unidentified Anomalous Phenomena](https://media.defense.gov/2024/Nov/14/2003583603/-1/-1/0/FY24-CONSOLIDATED-ANNUAL-REPORT-ON-UAP-508.PDF)\n[^11]: [AARO Director Jon Kosloski media roundtable on FY24 UAP annual report](https://www.defense.gov/News/Transcripts/Transcript/Article/3965734/dr-jon-kosloski-director-aaro-media-roundtable-on-the-fy24-consolidated-annual/)\n[^12]: [Weaponized Episode 74](https://www.weaponizedpodcast.com/episodes-3/episode-74)\n[^13]: [Weaponized Episode 75](https://www.weaponizedpodcast.com/episodes-3/episode-75)\n[^14]: [Weaponized Episode 76](https://www.weaponizedpodcast.com/episodes-3/episode-76)\n[^15]: [Weaponized Episode 89](https://www.weaponizedpodcast.com/episodes-3/episode-89)","readingTime":"8 min read"},"relatedRecords":[{"ref":{"type":"people","slug":"kirk-mcconnell","title":"Kirk McConnell","url":"https://disclosdex.com/people/kirk-mcconnell"},"direction":"inbound","weight":1},{"ref":{"type":"programs","slug":"immaculate-constellation","title":"Immaculate Constellation","url":"https://disclosdex.com/programs/immaculate-constellation"},"direction":"inbound","weight":1},{"ref":{"type":"people","slug":"mario-woods","title":"Mario Woods","url":"https://disclosdex.com/people/mario-woods"},"direction":"inbound","weight":1},{"ref":{"type":"people","slug":"anna-paulina-luna","title":"Anna Paulina Luna","url":"https://disclosdex.com/people/anna-paulina-luna"},"direction":"inbound","weight":1},{"ref":{"type":"people","slug":"matthew-brown","title":"Matthew Brown","url":"https://disclosdex.com/people/matthew-brown"},"direction":"inbound","weight":1},{"ref":{"type":"people","slug":"tim-burchett","title":"Tim Burchett","url":"https://disclosdex.com/people/tim-burchett"},"direction":"inbound","weight":1}],"citation":{"canonicalUrl":"https://disclosdex.com/people/michael-shellenberger","title":"Michael Shellenberger","publisher":"Disclosdex","retrievedFrom":"https://disclosdex.com/api/v1/people/michael-shellenberger","license":"CC-BY-4.0"}}