The deaths and disappearances of roughly 10 scientists who worked in U.S. nuclear and aerospace programs have drawn international scrutiny and raised alarm.
Initial coverage by outlets such as Fox News prompted online skepticism and conspiracy-driven commentary. The story has since escalated: President Donald Trump raised the matter at a White House meeting, and on the 20th, Congress said it regards the case as a national security threat and is treating it as a priority. With the FBI effectively opening an official inquiry, the issue has moved from rumor toward a formal investigation and wider global concern.
On the 20th (local time), The Hill and Newsweek reported that since 2022 eleven scientists across the United States have died or gone missing. The list includes three researchers from NASA laboratories and two from Los Alamos National Laboratory, the facility linked to the Manhattan Project and the first U.S. atomic weapons development effort. Many of the individuals worked in defense-related areas: nuclear technology, planetary and asteroid science, and jet propulsion.
Among those cited, Steven Garcia — who worked on nonnuclear components for nuclear weapons — was last seen leaving his home in Albuquerque, New Mexico, in August. Frank Maiwald, a space-research specialist, died in July 2024 in Los Angeles; authorities have not disclosed a cause.
Caltech astrophysicist Cal Grimaier, who collaborated with NASA on the detection of water around an exoplanet, was shot and killed at his front door in February. At MIT, nuclear physicist Nune Lurayro reportedly died of a gunshot wound at his home in December.
Melissa Casias, an administrative assistant at a Department of Energy laboratory in Los Alamos, went missing from her home in June last year. Former lab employee Anthony Chavez disappeared after he was last seen walking out of his residence in April.
Retired Air Force Gen. William Neil McClelland reportedly vanished after leaving his New Mexico home in February. During his service he oversaw a classified space-weapons program, and his disappearance has spurred unverified rumors tying Wright-Patterson Air Force Base near Dayton, Ohio — where he served as a research director — to alleged recovery of debris from Roswell, New Mexico. In July 2023, Michael David Hicks, who participated in major NASA efforts including asteroid-orbit experiments, died at 59.
U.S. media have identified the scientists as working on nuclear, aerospace or Unidentified Anomalous Phenomena (UAP) research. The FBI says it is exploring multiple lines of inquiry, including the possibility of foreign espionage. Rep. James Comer (R-Ky.), chair of the House Oversight Committee, told reporters Congress views the situation as a national security threat and is deeply concerned, adding that a conspiracy appears likely.
On the 17th, President Trump told a conservative group in Arizona that officials had uncovered “very interesting” documents related to unidentified flying objects (UFOs). He said document releases would begin soon and that the public would be able to judge whether the phenomena are real.
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