Hal Puthoff
CIA-era physicist · SRI Stargate · AAWSAP author
“Some materials are constructed in ways not achievable by known methods.”
Hal Puthoff is a physicist who has become a recurring theoretician of the modern UAP era, cited by podcasts, documentaries and Pentagon programmes, and quoted by the other voices on this site. His account runs from his documented career in physics and government research to claims that rest on his own testimony and that of others, recovered craft, anomalous materials, and a metric-engineering account of how such craft might work.
Who he is
Puthoff holds a Stanford Electrical Engineering PhD (1967) and is the author of a standard quantum-electronics textbook. He ran the CIA and DIA’s remote-viewing research at SRI, and later wrote the DIA paper Advanced Space Propulsion Based on Vacuum (Spacetime Metric) Engineering, the 2010 document that became a theoretical reference point of the modern Pentagon UAP era. He is president of EarthTech International and co-founder of TTSA’s ADAM materials programme. He works at the join of physics and classified intelligence research.
What he says
The craft. He says the United States holds ten or more recovered UAP, intact or partial, and that reverse-engineering has been split across aerospace contractors so tightly that samples cannot legally move from a basement to an upstairs lab. He presents this as testimony, his own and others’, not public record.
The materials. He describes layered bismuth-magnesium and titanium-bismuth samples with isotopic ratios he says are consistent with terrestrial origin but, in his words, “constructed in ways not achievable by known methods”, and he says the Aerospace Corporation was unable to reproduce the bonding. He acknowledges that ORNL’s 2024 analysis of one Mg-Zn-Bi specimen returned a null result, while arguing it does not settle the other samples.
“Some materials have isotopic ratios consistent with terrestrial origin but are constructed in ways not achievable by known methods, especially not during the era when they were supposedly created.”
The physics. His account of the Five Observables (instantaneous acceleration, hypersonic speed, low observability, trans-medium travel, positive lift) is metric engineering: locally warping spacetime so a craft rides in a bubble exempt from inertia and air. He traces the maths to Alcubierre’s 1994 warp-drive paper, a peer-reviewed theory, and presents it as an account of how such performance could work in principle rather than evidence that any craft does it.
The occupants. His 2022 taxonomy lays out six possibilities for a non-human intelligence: extraterrestrial, extradimensional, cryptoterrestrial, demonic or djinn, proto-human, or time-travellers. He declines to pick one.
Remote viewing. He was the principal investigator for Pat Price and Ingo Swann at SRI, and he says the remote-viewing record is the only decades-long government dataset on the subject that was never fully compartmentalised away. He cites several demonstrations:
- Ingo Swann describing the inner structure of a shielded magnetometer from outside its chamber, the demo he credits with helping launch the 23-year government programme.
- Pat Price reportedly reading code-words from a secure NSA site at Sugar Grove in 1974.
- Joe McMoneagle sketching a Soviet Typhoon-class submarine ahead of satellite confirmation.
- A remote-viewed “UFO base” near Pine Gap, later said to be echoed by a CIA source.
In his own words
“Some materials have isotopic ratios consistent with terrestrial origin but are constructed in ways not achievable by known methods, especially not during the era when they were supposedly created.” “Layers of bismuth and magnesium were prohibitively expensive to attempt to bond, a feat which also resulted in broken equipment.” “It was a multilayered bismuth and magnesium sample. Bismuth layers less than a human hair… supposedly picked up in the crash retrieval of an advanced aerospace vehicle.”
What is on the record
Puthoff’s Stanford PhD, his quantum-electronics textbook, his role in the SRI remote-viewing programme and his authorship of the 2010 DIA metric-engineering paper are documented. The Alcubierre 1994 warp-drive paper is real, peer-reviewed theory. ORNL’s 2024 analysis of one Mg-Zn-Bi specimen returned a null result. The remote-viewing programme was reviewed in 1995: Jessica Utts read the data as showing a real effect, Ray Hyman read the same data as showing none, and the programme was wound down as not reliable enough to use operationally. The recovered craft, the contractor compartmentalisation and the further material claims are described in his testimony and that of others; they are not public record, and the remote-viewing demonstrations are documented by the programme and disputed outside it. The rolling PURSUE declassification is the channel in which claims of this kind either appear in the record or do not, and the document briefings on this site read each release as it comes.
Where to go deeper
/technology, the Five Observables, metric engineering, remote viewing/bismuth, the Mg-Bi and Ti-Bi samples/occupants, the six-category taxonomy/caveats, what is and is not established