At least 12 scientists linked to nuclear and space research in the US have died or disappeared since 2022, prompting federal investigations.

Between 2022 and 2026, a series of deaths and disappearances among scientists connected to sensitive nuclear and space programs triggered concern among lawmakers and federal agencies. The cases vary, including natural deaths, homicides, and missing-persons reports. Some of these scientists worked at NASA’s Jet Propulsion Laboratory and Caltech, raising questions about potential security threats and the need for deeper inquiries.