Missing US Nuclear Scientists: 11 Dead or Gone, FBI and White House Investigating 2026

# Missing US Nuclear Scientists: 11 Dead or Gone, FBI and White House Investigating 2026

> **Quick answer:** At least 11 American scientists with access to classified nuclear, space, and aerospace research have died or vanished under suspicious or unexplained circumstances since 2023. The White House and FBI are now conducting a formal review to determine whether the cases are connected. No confirmed link between cases exists yet, but President Trump has called the situation "pretty serious stuff."

The pattern is impossible to ignore. Since mid-2023, a growing list of American researchers — nuclear engineers, astrophysicists, plasma physicists, and aerospace scientists with top-secret clearances — have disappeared without a trace or turned up dead. The missing dead US nuclear space scientists FBI investigation 2026 has become one of the most closely watched national security stories of the year, raising urgent questions about foreign espionage, targeted killings, or something far more troubling.

## Who Is on the List: All 11 Scientists Named

The cases span multiple agencies, institutions, and years. Here is the full roster, based on current reporting from Newsweek, Fox News, and LiveNOW from FOX:

**1. Neil McCasland** — Retired Air Force Major General with senior roles at the Pentagon and in space research acquisition. Disappeared February 27, 2026. His phone, prescription glasses, and wearable devices were found at home. His hiking boots, wallet, and a .38-caliber revolver were missing. No body has been found.