Federal investigators are examining the deaths and disappearances of at least 11 scientists connected to U.S. aerospace and defense programs since 2022, following congressional requests for information on potential links between the cases.
The House Oversight Committee on Monday requested briefings from multiple federal agencies regarding the researchers with ties to NASA, SpaceX, and Blue Origin. Committee Chairman James Comer and Rep. Eric Burlison sent letters to officials including FBI Director Kash Patel, Energy Secretary Chris Wright, and NASA Administrator Jared Isaacman, with briefings requested by April 27.
“If the reports are accurate, these deaths and disappearances may represent a grave threat to U.S. national security and to U.S. personnel with access to scientific secrets,” the letters stated. Comer, a Kentucky Republican, said he did not believe the pattern was coincidental, calling it “very unlikely” and describing it as a potential national security concern.
Government Response and Investigation
The White House acknowledged the matter on April 15 when press secretary Karoline Leavitt said the administration would look into the cases if accurate. President Trump told reporters the same day that he had “just left a meeting on that subject” and would have answers within “the next week and a half.”
Leavitt confirmed in a subsequent post that the administration “is actively working with all relevant agencies and the FBI to holistically review all of the cases together and identify any potential commonalities.” FBI Director Patel told Fox News that investigators would examine possible connections to classified information access and foreign actors.
The FBI stated in a message to media outlets that it “is spearheading the effort to look for connections into the missing and deceased scientists” while coordinating with the Department of Energy, Department of Defense, and local law enforcement partners.
Agency Statements and Investigation Scope
NASA said it was “coordinating and cooperating with the relevant agencies” but stated that “nothing related to NASA indicates a national security threat” at this time. The agency committed to providing transparency as information becomes available.
The Oversight Committee’s focus extends beyond NASA to the broader commercial space and defense sector. Experts note that specialized fields like planetary defense and nuclear research employ relatively small numbers of specialists focused on areas including asteroid tracking and deflection systems.
Blue Origin’s 2026 introduction of its NEO Hunter planetary defense concept, developed with NASA’s Jet Propulsion Laboratory and the California Institute of Technology, employed technologies including ion-beam deflection and kinetic impact systems.
This story has been updated. CNN’s staff contributed to this report.
