9 Scientists Die or Vanish Since July 2023, Sparking UAP Fears

Nine scientists and military figures have died or disappeared since July 2023, a much higher number than usual for such a specific group.

A series of at least nine deaths and disappearances involving scientists and military figures, many with ties to NASA and sensitive U.S. research, has sparked widespread speculation and concern. Officials remain largely silent, fueling questions about potential conspiracies and links to classified projects, including those related to unidentified aerial phenomena (UAP).

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Among the prominent cases are:

  • Michael Hicks, a long-time researcher at NASA's Jet Propulsion Laboratory (JPL), died in July 2023. No cause of death or autopsy details have been publicly released. His work reportedly involved infrared space telescopes tracking asteroids.

  • Frank Maiwald, who died in July 2024, also has no publicly available autopsy information.

  • Carl Grillmair, an astrophysicist, was shot and died in February 2026.

  • William McCasland, a retired Air Force Major General, vanished in February 2026. He reportedly held "nuclear and UFO-related secrets." Investigators noted he left his phone, wallet, and keys behind.

  • Monica Reza, an aerospace engineer specializing in advanced rocket engines, vanished in June 2025. Her work was linked to missile and rocket science.

  • Melissa Casias, who is believed to have held security clearance for sensitive data at Los Alamos National Laboratory, disappeared in June 2025 under similar circumstances.

  • Anthony Chavez vanished in May 2025.

  • David 'JoelKatz' Schwartz is also listed among those who died, though specific dates and circumstances are less detailed in the provided information.

  • Nuno Loureiro, who was developing nuclear fusion, was shot and killed in an incident reported last year.

Unanswered Questions and Official Silence

NASA and JPL have declined to comment on the deaths of individuals like Hicks and Maiwald, and have not responded to inquiries regarding the nature of the scientists' work prior to their passing. This lack of official transparency has become a central point of contention, pushing speculation into realms of national security and clandestine operations.

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The disappearances, particularly that of McCasland, have drawn significant attention from UFO communities. McCasland's case, along with those of Reza and Grillmair, has been linked through their work on advanced missile or rocket science. Several individuals disappeared after leaving their homes on foot, abandoning personal belongings like phones and wallets, adding a layer of peculiarity to their vanishings.

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Overlapping Expertise and Potential Connections

A common thread among these individuals appears to be their expertise in fields such as advanced propulsion, nuclear fusion, astrophysics, and classified defense research. This shared background suggests a potential nexus with projects critical to national security, possibly including those focused on unidentified aerial phenomena (UAP). McCasland's research was reportedly tied to rocket engine development, and Reza worked on advanced rocket engines and propulsion. Loureiro's work on nuclear fusion is also noted as a significant area of research.

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The cluster of incidents, described by some as "chilling" and "disturbing," began gaining broader notice in late 2025 and early 2026, with reports documenting a growing number of unexplained deaths and disappearances. The fact that multiple scientists and military figures with highly specialized knowledge are involved has intensified the search for answers and fueled a narrative of a potential targeted pattern.

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Frequently Asked Questions

Q: What has happened to scientists and military figures since July 2023?
At least nine scientists and military figures have died or disappeared since July 2023. Many had connections to NASA and sensitive U.S. research projects.
Q: Why are people concerned about these deaths and disappearances?
The individuals involved had specialized knowledge in areas like advanced propulsion, nuclear fusion, and classified defense work. Their deaths and disappearances, especially with little public information, have led to speculation about national security and potential links to UAP research.
Q: What is known about the specific cases?
Cases include Michael Hicks (NASA JPL, died July 2023), Frank Maiwald (died July 2024), Carl Grillmair (astrophysicist, shot Feb 2026), William McCasland (retired Air Force Major General, vanished Feb 2026), Monica Reza (aerospace engineer, vanished June 2025), Melissa Casias (Los Alamos, disappeared June 2025), Anthony Chavez (vanished May 2025), David Schwartz (died, details unclear), and Nuno Loureiro (nuclear fusion, shot last year).
Q: Why is there official silence on these cases?
NASA and JPL have declined to comment on the deaths of some individuals, and there is a general lack of public information and autopsy details. This silence fuels speculation and concern about the circumstances surrounding these events.
Q: What common links exist between the affected individuals?
Many of the individuals shared expertise in advanced fields such as propulsion, nuclear fusion, astrophysics, and classified defense research. Some disappearances involved leaving personal items like phones and wallets behind, adding to the mystery.