Bob Lazar on the Joe Rogan Experience
12 fact-checked claims across 2 episodes · Jun 2019 to Apr 2026 · updated Jul 29, 2026
Bob Lazar has told the same story since his 1989 Las Vegas television interviews: that he worked as a physicist at a hidden site called S-4 near Papoose Lake, reverse-engineering alien craft fueled by element 115. Joe Rogan gave the story its biggest platform in June 2019 on episode #1315 with filmmaker Jeremy Corbell, one of the most watched JRE episodes ever, and revisited it in 2026 on #2479 with Luigi Vendittelli. We have logged claims from both conversations.
The story splits into checkable and uncheckable parts. The physics of element 115 is settled, published science, and it does not behave the way Lazar describes. His credentials and employment records are disputed, with institutions denying them and no documents surfacing in three decades. The supporting artifacts offered on air, a hand scanner, old maps, aerial photographs, are real objects that do not establish what they are said to establish.
Most claims
- Bob Lazar (8)
- Luigi Vendittelli (2)
- Jeremy Corbell (1)
- Joe Rogan (1)
Related topics
Was Bob Lazar a physicist at Los Alamos?
Lazar's baseline credential claim is that he worked as a physicist at Los Alamos National Laboratory before S-4. A 1982 front-page story about his jet-powered Honda really did call him a Los Alamos physicist, but that label traces back to Lazar's own self-description rather than to job records, and no MIT or Caltech records have ever surfaced. The disappearance of records is itself part of the story: Corbell repeated George Knapp's account that Lazar's birth certificate vanished from the record, which no independent source has confirmed.
Is element 115 real, and is it stable?
Element 115 exists: moscovium was first synthesized in 2003 by a joint Dubna-Livermore team, a fact that cuts both ways for the story. On #1315 Lazar claimed the fabricated element matched the stable, non-radioactive fuel he handled at S-4, and he repeated on #2479 that a stable isotope of element 115 can exist. Published nuclear physics says otherwise: every known moscovium isotope decays in a fraction of a second, and the theorized island of stability does not rescue a bench-stable metal. Even the origin story drifts: his #1315 telling misplaced where and when the element was first made, and Rogan's assist, that the Large Hadron Collider proved element 115 exists, names the wrong machine entirely. More element claims sit in the element 115 ledger.
Could the S-4 reactor work as described?
The propulsion narrative rests on physical claims that can be checked against known physics. On #1315 Lazar described a reactor that produced enormous power with no heat, which thermodynamics does not permit as described. On #2479 he added specifics, saying 223 grams of element 115 fueled the craft and naming project codenames no document has corroborated; Oak Ridge notes the element has only ever been produced one atom at a time. His claim that Russian scientists secretly worked at S-4 in the late 1980s fares no better: the documented history of foreign-scientist programs contradicts the secrecy framing it depends on.
Do the corroboration artifacts hold up?
Each new telling adds physical exhibits. The best known is the hand scanner: Lazar described a hand-geometry scanner that measured finger bone length at S-4, and an Identimat-style device really was a period access-control product; its existence confirms the technology was real, not that it was used where Lazar says. On #2479, Vendittelli argued that a 1941 Interior Department map shows a road running into the S-4 site and that aerial photos of Papoose Lake show camouflaged hangar doors. Neither is independently verified: the map's provenance traces to research for Vendittelli's own documentary, and the declassified record of the site does not corroborate the photographed features as structures. The wider saucer-lore context is in our UFO and unidentified phenomena claims.
Logged claims
“So what it was was a device that had a little picture of a hand on a glass plate with pins in it, so you could jam your hand in there.”
Lazar claims S4 used a specific hand-geometry access-control scanner, a glass plate with alignment pins that measured finger-bone length via light, to grant entry and print security badges.
“uncovered that i mean he saw my birth certificate disappear he um it disappeared yeah there was no record of you being”
Corbell claims investigative reporter George Knapp discovered that Bob Lazar's birth certificate had been made to disappear, with no record of it remaining.
“In fact, you need 223 grams machined into a wedge like this. The program out at S-4 consisted of three projects, Project Galileo, Project Sidekick, and Projec…”
Lazar states 223 grams of element 115 were needed as reactor fuel and names three specific project codenames (Galileo, Sidekick, Looking Glass) run out of S-4.
“That map is the oldest map of Papus Lake known in the hands of the government that is public domain. That map, and everybody's going to be listening to this, …”
Vendittelli claims a public-domain 1941 U.S. Department of the Interior map shows a road running directly into the site where Bob Lazar said S-4 is located.
“like he's one of the best i've ever seen his name is scott mitchell and he says there are pictures that were taken in 2020 and they ironically those pictures …”
Vendittelli says a researcher named Scott Mitchell obtained aerial photos of Papoose Lake taken by a private pilot on December 25, 2020, showing what Vendittelli identifies as camouflaged hangar bay doors.
“there's different isotopes of every element. And element 115, just like any other element, there can be a stable version of it and a hundred or 50 different un…”
Lazar claims element 115 (moscovium) can exist in a stable isotope form alongside many unstable isotopes.
“So Element 115 was not even really discussed back when you were doing this. It wasn't even discovered or proven physically until it was a large Hadron Collide…”
Rogan asserts element 115 was first proven to exist via a Large Hadron Collider experiment in the 2000s.
“Well, the way this went down was um at that time it was 1982 i um i put uh a jet engine in my my honda and los alamos put it on the front page of the paper sai…”
Lazar claims he worked as a physicist at Los Alamos National Labs and was featured on the front page of a local paper for building a 200-mph jet-powered Honda that he drove to work.
“2004, Dermstadt, Germany, I think is where they first fabricated four atoms. It lasted 220 milliseconds. The atoms, it's nothing, right?”
Lazar claims element 115 (moscovium) was first artificially fabricated in 2004 in Darmstadt, Germany, producing four atoms that lasted 220 milliseconds.
“When I was first there, there were Russian scientists at S4 that was this was early on in the project so this was before Operation Paperclip became public as w…”
Lazar claims Russian scientists were present working at S4 in the late 1980s, and that this predated public knowledge of Operation Paperclip.
“But it never got, no matter what the load was on the reactor, it never got above the ambient temperature, which is impossible. I mean, you're pulling out huge …”
Lazar claims the alien reactor he studied at S4 produced huge amounts of power without ever generating waste heat above ambient temperature, in apparent violation of the laws of thermodynamics.
“Element 115, the fuel they had, was stable. In other words, it didn't decay, it wasn't emitting radioactivity”
Lazar claims the element 115 he worked with at S4 was a stable, non-radioactive isotope used as an anti-gravity fuel source.