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Missing California scientists mystery deepens as NASA wades into deaths probe

Nypost · · 556 words · By Fox News
Government Investigation/Transparency National Security/Scientific Research
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What to know about Government Investigation/Transparency

Missing California scientists mystery deepens as NASA wades into deaths probe NASA said on Monday that it will work with other federal agencies to investigate the deaths and disappearances of 11 nuclear and space scientists, raising concerns in Washington…

Claims checked 18
Techniques found 1
Topics 2

Coverage spectrum

Coverage gap: Low Left coverage
Left0%
Center50%
Right50%

2 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

Missing California scientists mystery deepens as NASA wades into deaths probe NASA said on Monday that it will work with other federal agencies to investigate the deaths and disappearances of 11 nuclear and space scientists, raising concerns in Washington…

Why it matters

“NASA is coordinating and cooperating with the relevant agencies in relation to the missing scientists,” NASA spokesperson Bethany Stephens wrote on X.

Common ground

“At this time, nothing related to NASA indicates a national security threat.

Perspective signals

The tension in the story is sharpened by Loaded Language: language that can make the dispute feel more urgent, personal, or adversarial than the underlying facts alone.

open_in_new Read the original article: https://nypost.com/2026/04/21/us-news/nasa-probes-deaths-disappearances-of-11-sc…

psychologyPropaganda Techniques Detected

eFinder identified 1 propaganda technique in this article. These signals explain how wording, emphasis, or missing context can shape a reader's interpretation.

warning
Loaded Language 80% confidence
Using words with strong emotional connotations to influence an audience.
Found in this article: eFinder flagged this technique because the story's framing or source language may guide readers toward a particular interpretation. Review the claim checks and evidence below to separate what is directly supported from what is implied by wording or emphasis.
Why it matters: Recognizing loaded language helps readers compare the article's framing with the underlying facts and with coverage from other sources.

fact_checkClaims Checked

eFinder analyzed this article and checked 18 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

schedule Pending 8
check_circle Corroborated 6
info Single Source 2
verified Verified By Reference 1
help Insufficient Evidence 1
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Claim 1: ““NASA is coordinating and cooperating with the relevant agencies in relation to the missing scientists,” NASA spokesperson Bethany Stephens wrote on X. “At this time, nothing related to NASA indicates a national security threat. The agency is committed to transparency and will provide more information as it becomes available.””
CORROBORATED
Two separate web search results quote or paraphrase NASA spokesperson Bethany Stephens stating that NASA is coordinating with relevant agencies regarding the missing scientists and that nothing currently indicates a national security threat. This corroborates the core message of the claim.
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wikipedia NEUTRAL — The Space Launch System (SLS) is an American two-stage super heavy-lift expendable launch vehicle used by NASA. The primary launch vehicle for the Artemis program, SLS is designed to launch the four-p…
https://en.wikipedia.org/wiki/Space_Launch_System
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wikipedia NEUTRAL — The NASA-ESA Mars Sample Return is a proposed Flagship-class Mars sample return (MSR) mission to collect Martian rock and soil samples in 43 small, cylindrical, pencil-sized, titanium tubes and return…
https://en.wikipedia.org/wiki/NASA-ESA_Mars_Sample_Return
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wikipedia NEUTRAL — Shannon Matilda Wells Lucid (née Wells; born January 14, 1943) is an American biochemist and retired NASA astronaut. She has flown in space five times, including a prolonged mission aboard the Russian…
https://en.wikipedia.org/wiki/Shannon_Lucid
+ 3 more evidence sources
info
Claim 2: ““In light of the recent and legitimate questions about these troubling cases, and President Trump’s commitment to the truth, the White House is actively working with all relevant agencies and the FBI to holistically review all of the cases together and identify any potential patterns,” Karoline Leavitt later wrote on social media.”
SINGLE SOURCE
The claim attributes a specific statement to Karoline Leavitt regarding the White House, FBI, and pattern review. While the evidence confirms Leavitt made statements on social media, the specific quote and context provided in the claim are only supported by the search results referencing her statements, without independent corroboration from multiple sources confirming the entire statement.
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wikipedia NEUTRAL — At 79 years old, Donald Trump, the 45th and 47th president of the United States, became the oldest person in American history to become president upon his second inauguration in 2025. In July 2024, fi…
https://en.wikipedia.org/wiki/Age_and_health_concerns_about_…
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wikipedia NEUTRAL — Associated Press v. Taylor Budowich, Karoline C. Leavitt, and Susan Wiles is a pending court case before a three-judge panel of the United States Court of Appeals for the District of Columbia Circuit …
https://en.wikipedia.org/wiki/Associated_Press_v._Budowich
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wikipedia NEUTRAL — The Epstein files are a partially released collection of millions of documents, images, videos, and emails detailing the activities of American financier and convicted child sex offender Jeffrey Epste…
https://en.wikipedia.org/wiki/Epstein_files
+ 3 more evidence sources
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Claim 3: “The causes of death for Hicks and Maiwald remain unknown.”
CORROBORATED
Two separate web search results state that the causes of death for Michael David Hicks and Frank Maiwald are unknown or unexplained. This corroborates the claim regarding the unknown causes of death for these two individuals.
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web search NEUTRAL — Michael David Hicks, 59; Frank Maiwald, 61; Nuno Loureiro, 47; Jason Thomas, 45; Amy Eskridge, 34; and Carl Grillmair, 47, all died between 2023 and 2026, with each individual playing a key role in vi…
https://www.foxnews.com/us/string-scientist-deaths-vanishing…
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web search NEUTRAL — Michael David Hicks, 59, a longtime researcher at @NASAJPL NASA’s Jet Propulsion Laboratory, has died under unexplained circumstances with no cause of death or autopsy released.Hicks' long-time co-wor…
https://www.ibtimes.co.uk/unexplained-nasa-deaths-ufo-spy-th…
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web search NEUTRAL — Michael Hicks, who worked on NASA space science missions, died in July 2023.JPL astrophysicist Carl Grillmair was murdered on his front porch in February, and Frank Maiwald, another JPL scientist, die…
https://nypost.com/2026/04/09/us-news/another-mysterious-nas…
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Claim 4: “Meanwhile, President Donald Trump has vowed to investigate the occurrences.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
schedule
Claim 5: “Comer said he plans to bring leaders from NASA, the FBI, and other federal agencies before Congress.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
schedule
Claim 6: ““We’ve put a notice out to the Department of War, the FBI, NASA, and the Department of Energy. We want to know everything they know about what happened with these scientists, because those four agencies were predominantly the ones these 11 individuals were affiliated with,” he said during an appearance on “Fox & Friends Weekend.””
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
verified
Claim 7: “Loureiro was also fatally shot at his Massachusetts home.”
VERIFIED BY REFERENCE
The cross-reference source (Krdo) directly states that Nuno F.G. Loureiro was fatally shot at his home near Boston in December 2025, confirming the core elements of the claim.
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cross reference SUPPORTS — A professor at the Massachusetts Institute of Technology, Nuno F.G. Loureiro, was fatally shot at his home near Boston in December 2025 by a gunman who also opened fire on Brown University’s campus, k…
https://krdo.com/news/2026/04/21/at-least-10-scientists-tied…
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Claim 8: “NASA said on Monday that it will work with other federal agencies to investigate the deaths and disappearances of 11 nuclear and space scientists, raising concerns in Washington about whether they were targeted for their work.”
CORROBORATED
Multiple web search results report that officials are investigating the deaths and disappearances of scientists connected to sensitive research, including NASA. The claims are consistently reported across different search results, though the specific details (like the exact number '11' or the timing 'Monday') are not uniformly confirmed across all sources.
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wikipedia NEUTRAL — NASA Astronaut Group 5 (nicknamed "The Original Nineteen") was a group of nineteen astronauts selected by NASA in April 1966. Of the six Lunar Module Pilots that walked on the Moon, three came from Gr…
https://en.wikipedia.org/wiki/NASA_Astronaut_Group_5
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wikipedia NEUTRAL — Perseverance is a NASA rover that has been exploring Mars since February 18, 2021, as part of the Mars 2020 mission. Built and managed by the Jet Propulsion Laboratory, it was launched on July 30, 202…
https://en.wikipedia.org/wiki/Perseverance_(rover)
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wikipedia NEUTRAL — NASA Astronaut Group 4 (nicknamed "The Scientists") was a group of six astronauts selected by NASA in June 1965. While the astronauts of the first two groups were required to have an undergraduate deg…
https://en.wikipedia.org/wiki/NASA_Astronaut_Group_4
+ 3 more evidence sources
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Claim 9: “The body of Jason Thomas, an associate director of chemical biology at Novartis, was discovered in Lake Quannapowitt, Mass., three months after he was last seen walking from his home late at night.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
info
Claim 10: “Each played a key role in vital scientific research, Fox News Digital previously reported.”
SINGLE SOURCE
The claim attributes the reporting that the individuals played key roles to 'Fox News Digital'. While the evidence shows Fox News Digital has reported on related topics, the specific claim that *they* reported this for *all* listed individuals is only supported by the context of the search results mentioning Fox News, not by independent confirmation of this specific statement.
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web search NEUTRAL — The report’s accusations against Cleveland Clinic, which Fox News Digital previously reported on, highlight a comment from CEO Tom Mihaljevic when he stated that “healthcare is only part of our missio…
https://donaldjtrumppolls.com/first-on-fox-report-slams-hosp…
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web search NEUTRAL — US News is a recognized leader in college, grad school, hospital, mutual fund, and car rankings. Track elected officials, research health conditions, and find news you can use in politics, business, h…
https://www.usnews.com/topics/organizations/fox_news
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web search NEUTRAL — Former NSC and State Department official Andrew Tabler told Fox News Digital he believes Sec. of State Marco Rubio is ‘quite energetic’ and can handle the demands of both State and the National Securi…
https://www.foxnews.com/politics/one-man-cabinet-marco-rubio…
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Claim 11: “All the disappearances occurred under suspicious circumstances.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
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Claim 12: “At least 11 people have either died or vanished since 2022.”
CORROBORATED
Multiple web search results mention a number of scientists who have died or disappeared since 2022, citing figures around 10 or 11. This recurring theme across different search results corroborates the general assertion of multiple losses since 2022.
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wikipedia NEUTRAL — 11:11, Eleven Eleven, or variations of the two, may refer to:
https://en.wikipedia.org/wiki/11:11
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wikipedia NEUTRAL — AT-11 may refer to: AT-11 Sniper, a guided antitank missile AT-11 Kansan, a World War II training aircraft
https://en.wikipedia.org/wiki/AT-11
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wikipedia NEUTRAL — Eleven or 11 may refer to: 11 (number), the natural number following 10 and preceding 12 One of the years 11 BC, AD 11, 1911, 2011
https://en.wikipedia.org/wiki/11
+ 3 more evidence sources
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Claim 13: “On Sunday, House Oversight Committee Chairman James Comer, R-Ky., warned that “something sinister” could be involved.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
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Claim 14: “Michael David Hicks, 59; Frank Maiwald, 61; Nuno Loureiro, 47; Jason Thomas, 45; Amy Eskridge, 34; and Carl Grillmair, 47, all died between 2023 and 2026.”
CORROBORATED
Two web search results list the same group of individuals (Hicks, Maiwald, Loureiro, Thomas, Eskridge, Grillmair) and state they died between 2023 and 2026. This repetition across different search result snippets corroborates the list and the general timeframe.
travel_explore
web search NEUTRAL — The long list recently grew to nine with the death of Michael David Hicks, a research scientist at NASA's Jet Propulsion Laboratory (JPL), who passed away on July 30, 2023, at the age of 59.
https://economictimes.indiatimes.com/us/news/who-are-the-us-…
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web search NEUTRAL — Michael David Hicks, 59; Frank Maiwald, 61; Nuno Loureiro, 47; Jason Thomas, 45; Amy Eskridge, 34; and Carl Grillmair, 47, all died between 2023 and 2026, with each individual playing a key role ...
https://www.foxnews.com/us/string-scientist-deaths-vanishing…
travel_explore
web search NEUTRAL — Aerojet Rocketdyne JPL astrophysicist Carl Grillmair was murdered on his front porch in February, and Frank Maiwald, another JPL scientist, died in July 2024 without explanation.
https://nypost.com/2026/04/09/us-news/another-mysterious-nas…
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Claim 15: “The vast majority were involved in nuclear science and space research, with some connected to the study of Unidentified Anomalous Phenomena (UAPs).”
CORROBORATED
The web search results repeatedly link the missing/deceased scientists to 'nuclear,' 'space,' and 'advanced research' programs. The connection to UAPs is also mentioned in the context of these investigations, suggesting the majority were involved in these fields.
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wikipedia NEUTRAL — The All-domain Anomaly Resolution Office (AARO) is an office within the United States Office of the Secretary of Defense that investigates unidentified flying objects (UFOs) and other phenomena in the…
https://en.wikipedia.org/wiki/All-domain_Anomaly_Resolution_…
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wikipedia NEUTRAL — The National Defense Authorization Act for Fiscal Year 2024 (NDAA 2024) is a United States federal law which specifies the budget, expenditures, and policies of the U.S. Department of Defense (DOD) fo…
https://en.wikipedia.org/wiki/National_Defense_Authorization…
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wikipedia NEUTRAL — An unidentified flying object (UFO) is an object or phenomenon seen in the sky but not yet identified or explained. The term was coined when United States Air Force (USAF) investigations into flying s…
https://en.wikipedia.org/wiki/Unidentified_flying_object
+ 3 more evidence sources
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Claim 16: “Monica Reza, 60; Melissa Casias, 53; Anthony Chavez, 79; Steven Garcia, 48; and retired Air Force Maj. Gen. William Neil McCasland, 68, were all reported missing between 2023 and 2026.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
help
Claim 17: “Grillmair was gunned down outside his home on Feb. 16, and Freddy Snyder, 29, was subsequently charged with his murder.”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results or cross-references to support the specific claim that Carl Grillmair was shot outside his home on Feb. 16, and that Freddy Snyder was charged with his murder. Although Grillmair's death is mentioned in connection with a shooting, the specific details about the date and the charge against Snyder are absent.
schedule
Claim 18: “Eskridge, a Huntsville, Alabama–based researcher, died June 11, 2022, from a self-inflicted gunshot wound.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.