📡 Daily UAP News Digest — April 30, 2026 (Thursday) AI-automated collection, organization, and formatting, focusing on authoritative sources and key developments

| 🌎 Global | 📅 April 2026 | 🔍 Comprehensive Report |

---

🏛️ Government Disclosures & Congressional Developments

🔥 Deceased Air Force Intelligence Officer Sullivan Confirmed Involved in “Legacy UFO Program”

Source: Liberation Times (April 24, 2026) / Daily Mail (April 2026)

An exclusive report by Liberation Times reveals that the late U.S. Air Force intelligence officer Matthew Sullivan (died in 2024 at age 39) was directly involved in a secret project referred to as the “legacy UFO program.” It is understood that Sullivan was primarily responsible for the technical aspects of the program, involving an “exotic vehicle” suspected to be of non-human origin.

Before his death, Sullivan was scheduled to testify alongside congressional UFO whistleblower and retired Air Force Major David Grusch. Congressman Eric Burlison stated: “He arranged to be interviewed, but within two weeks, he ‘suspiciously committed suicide.’” Burlison has formally written to FBI Director Kash Patel, requesting a criminal investigation into Sullivan’s death, believing the incident involves “serious misconduct and potential illegal activity.”

Sources for Liberation Times indicate that Sullivan, through a private company, collaborated with a U.S. intelligence agency on the technical work of the legacy UFO program, but his involvement began during his Air Force service. Sullivan served at the National Air and Space Intelligence Center (NASIC), the National Security Agency (NSA), and the Air Force Intelligence Directorate, and was awarded the Bronze Star for his service in the Afghanistan War.

Notably, Sullivan’s funeral was attended by Major General David Abba, who delivered a eulogy. Abba served as Director of the Office of the Secretary of Defense’s Special Access Program Central Office from 2021 to 2024, holding the highest level of classified access in the U.S. At the funeral, Abba described Sullivan as “the smartest intelligence lieutenant I have ever met” and stated he “carried secrets that very few in this country truly understand.”

This incident echoes the recent string of deaths or disappearances of multiple defense scientists. According to NewsNation, 11 U.S. scientists and defense figures have recently died or gone missing, the most prominent being retired Air Force General Neil McCasland, who mysteriously disappeared in late February.

Image: Matthew Sullivan served at the U.S. National Air and Space Intelligence Center (NASIC); his death has drawn attention from Congress and the FBI.

🔗 Liberation Times Original Article 🔗 Daily Mail Original Article

---

New Jersey UFO Research Center Bill Becomes Law

Source: UAP Check (April 17, 2026)

New Jersey’s Assembly Bill 5712 officially took effect in January 2026, including a historic provision to establish a “Center for the Study of Unidentified Aerial Phenomena.” Managed by a qualified higher education institution, the center will receive an annual appropriation of $2.5 million, making it the first UFO research institution formally established at the state legislative level in the U.S.

🔗 Full Report

---

🔬 Scientific Research Progress

🪐 Scientists Propose Detecting Alien Life Using Planetary Patterns

Source: The Debrief (April 28, 2026)

A team led by Harrison B. Smith from the Earth-Life Science Institute (ELSI) in Tokyo and Lana Sinapayen from the National Institute for Basic Biology has published groundbreaking research in The Astrophysical Journal, proposing a novel method for searching for extraterrestrial life: “agnostic biosignatures.”

Traditional SETI methods rely on searching for biosignatures like oxygen or methane, or technosignatures on individual planets, but both have flaws. Biosignatures can be produced by non-living chemical processes, while technosignatures require guessing the technological form of an alien civilization. The new method instead analyzes pattern correlations across entire groups of planets. The team’s computer simulations show that if life spreads between planets via “panspermia,” life would cause quantifiable correlations in the physical characteristics of neighboring planets—even if no single planet shows a clear sign of life.

This method sacrifices some coverage for a lower false positive rate, which is particularly valuable in an era of increasingly expensive telescope observation time. Smith stated: “By focusing on how life spreads and modifies its environment, we can search for life without needing a perfect definition or a single definitive signal.”

Image: An artist’s impression of alien life—scientists propose finding life by analyzing patterns across planetary groups rather than individual planets.

🔗 The Debrief Original Article

---

🔊 Infrasound Confirmed to Trigger Paranormal Experiences

Source: The Debrief (April 28, 2026)

A joint study by Canada’s MacEwan University and the University of Alberta, published in Frontiers in Behavioral Neuroscience, provides strong evidence that exposure to low-frequency infrasound (below 20Hz, inaudible to humans) can trigger physiological changes associated with paranormal experiences.

The research team recruited 36 participants who spent time alone in rooms playing either calm or “disturbing” music. Half of the rooms were equipped with subwoofers emitting 18Hz infrasound. Results showed that participants exposed to infrasound had significantly elevated cortisol levels and reported feeling more irritable, less interested in the music, and perceived the music as “sadder.” Crucially, participants could not tell whether they were exposed to infrasound.

Professor Rodney Schmaltz explained: “If you walk into a supposedly haunted building and immediately feel a change in mood, feel uneasy, but see or hear nothing unusual—you might be in an environment filled with infrasound, especially low-frequency vibrations from old pipes and ventilation systems in basements.”

Researchers note that this finding helps explain why certain buildings are considered “haunted” and also provides a variable that needs to be ruled out for the unusual physiological sensations reported by witnesses in real UAP events.

Image: Illustration of an infrasound experiment—low-frequency sound waves can trigger emotional changes like irritability and anxiety without the person’s knowledge.

🔗 The Debrief Original Article

---

NATO Drone Incursions and the UFO Narrative Debate

Source: Liberation Times (April 10, 2026)

Liberation Times journalist Franc Milburn published an in-depth analysis revealing that NATO allies in Europe face serious drone incursion problems in the Baltic Sea, North Sea, Black Sea, Atlantic Ocean, Arctic, and the English Channel. The article specifically refutes social media claims labeling the December 2024 RAF Lakenheath incident as “UFO activity”—MI6 has confirmed the activity involved Russian drone reconnaissance.

Milburn calls on the UFO community to raise forensic standards and avoid prematurely attributing unexplained events to non-human sources due to confirmation bias. However, he also acknowledges that NATO countries currently lack a unified drone response strategy, and this regulatory vacuum itself poses a security risk.

🔗 Full Report

---

❓ Cold Cases & Mysterious Events

Missing General McCasland Case Still Without Progress

Source: Liberation Times (March 16, 2026)

Retired U.S. Air Force General William “Neil” McCasland has been missing since late February in Albuquerque, New Mexico. Over two months later, there is still no breakthrough. McCasland, a former commander of the Air Force Research Laboratory (AFRL), was at the core of the Pentagon’s top aerospace research. After retirement, he collaborated with Blink-182 musician Tom DeLonge on UAP advocacy.

McCasland’s disappearance is considered the most prominent among the recent string of deaths/disappearances of U.S. scientists and defense figures.

🔗 Full Report

---

String of Deaths of U.S. National Security Scientists

Source: NewsNation (April 2026)

According to NewsNation, 11 U.S. scientists and defense-related individuals have recently died or gone missing, most linked to classified aerospace and defense projects. Besides McCasland and Sullivan, this includes several researchers who participated in advanced defense technology projects.

Congressman Burlison stated he has contacted the FBI, but the FBI has neither confirmed nor denied whether it is investigating these deaths.

---

🔮 Global Outlook

EU UAP Reporting Mechanism Severely Lacking

Source: UAP Check (March 20, 2026)

Data released on European UAP Day shows that Europe recorded over 5,000 UFO sighting reports in the past year, yet the EU has still not established a unified UAP tracking and response mechanism. Compared to the U.S., which has AARO and multiple state-level UAP research institutions, Europe’s fragmented reporting system creates a significant transatlantic response capability gap.

---