Anti-gravity
Anti-gravity — also written antigravity — refers in exopolitics and secret space program testimony to propulsion and field-generation technology that neutralizes, redirects, or amplifies gravitational effects, identified across multiple contact accounts as the fundamental principle underlying non-human craft propulsion and as the primary technology acquired through the reverse engineering of recovered non-human vehicles. Bob Lazar's description of the S-4 craft's propulsion system — three gravity-wave amplifiers on the craft's underside using Element 115 as a fuel source to generate a local gravity field that distorts space-time in the direction of travel — is the most technically detailed account of non-human antigravity principles in the public record.
Sport Model propulsion geometry
Lazar described two distinct operational configurations for the Sport Model's gravity propulsion: a low-altitude mode and a high-performance flight mode. At low altitude and low speed — hovering, docking, or maneuvering near the ground — the three gravity amplifiers on the craft's underside all pointed downward. For high-speed interstellar travel the craft would tilt on its axis so that one of the three amplifiers pointed toward the destination; the craft would then "pull" space toward itself by amplifying gravity in that direction. In this orientation, the craft effectively sat on top of the distorted space rather than traveling through it conventionally. Lazar described this as the difference between "omicron" (low-performance) and "delta" (high-performance) propulsion configurations, a distinction drawn from the briefing materials he read at S-4.
The gravity wave generated by the Sport Model's amplifiers produced a heart-shaped distortion envelope around the entire craft. Light bent around this envelope, making the craft effectively invisible from below when hovering. Radio waves also bent around it — a fact that confused Lazar and his colleagues, since VHF radio communication with the human pilot inside the craft appeared to function despite the theoretical impossibility of radio propagating through a local gravity distortion field of that magnitude.
Biefeld-Brown effect
The foundational human-developed effect cited in antigravity research is the Biefeld-Brown effect, named after Thomas Townsend Brown and his collaborator Paul Biefeld. Brown demonstrated in the late 1920s that an asymmetric capacitor — with a larger negative electrode and smaller positive electrode separated by a high-K dielectric insulator — when pumped with high-voltage, low-current direct current pulses, produces thrust from the negative to the positive electrode. Crucially, this effect was replicated in vacuum, ruling out ionized air as an explanation and suggesting a genuine coupling between electromagnetism and gravity.
Dr. Steven Greer traced the subsequent classification of Brown's research: "The whole Biefeld-Brown effect, studying very high-voltage systems, began to be increasingly studied and classified in the thirties and forties. By the time World War II ended, Adolf Hitler had a disc-shaped electro-gravitational device — which is why he could never use it in the war. But it was brought back to America by Paul Mellon, General Patton, and Allen Dulles." A 1968 Northrop paper on "electroaerodynamics" filed with the American Institute of Aeronautics and Astronautics — subsequently disappeared from the archive — was published three months after the formal conclusion of Floyd Odlum's funding of Brown's research in Santa Monica, suggesting a transition from disclosed to classified development.
The B-2 Spirit stealth bomber, some researchers suggest, may incorporate Biefeld-Brown electrogravitics: aviation journalist Bill Scott reportedly wrote that "the B-2 surfs its own wave and uses a Biefeld-Brown effect," and some interpret "B-2" itself as referencing Biefeld-Brown. Northrop Grumman was the B-2's primary manufacturer.
Alien Reproduction Vehicle (ARV)
Mark McCandlish's testimony about the Alien Reproduction Vehicle — a human-built reverse-engineered disc witnessed at Norton Air Force Base in 1988 by artist Brad Sorensen — identified an arrangement of capacitors in the ARV's undercarriage that Sorensen believed was consistent with Biefeld-Brown electrogravitic propulsion: "Mark questioned Brad if, due to the capacitor array, he thought this meant the craft functioned via the Biefeld-Brown effect, which converts electrostatic energy into propulsion." Edwards Air Force Base — the primary test facility for advanced aerospace programs and in close proximity to Northrop's Plant 42 facility — maintained a historically documented emphasis on alternative propulsion research, specifically including Biefeld-Brown electrogravitics.
Nazi Germany connection
The SS advanced weapons programs of the 1940s included Die Glocke — a device described by Polish researcher Igor Witkowski and German journalist Nick Cook as operating on torsion-field or counter-rotation principles related to antigravity. Whether Die Glocke was a propulsion prototype, a power generation device, or a time-distortion experiment remains unclear from the available evidence; in SSP testimony it is framed as an early human-derived approximation of the principles later confirmed by recovered NHI craft.
1950s media blackout
Steven Greer has pointed to a pattern in the public record: news articles from the 1950s described how researchers were "on the cusp of unlocking the secrets of gravity, which would unleash a technological revolution," but the articles abruptly ceased without explanation — a discontinuity Greer identifies as the moment antigravity technology was successfully demonstrated and immediately classified.
Classified program status
Greer identified a specific date for the mastery of gravity control: October 1954, a claim he attributed to Richard Foch, the third-highest-ranking official and highest-ranking scientist at the Naval Research Laboratory, who allegedly found documentation in NRL vaults establishing that date as the point at which U.S. classified programs achieved functional gravity control — the ability to render an object effectively massless through electromagnetic field manipulation. In SSP testimony, functional antigravity propulsion has allegedly been operational in classified U.S. programs since the 1960s, reportedly developed initially through reverse engineering and subsequently through independent development of the principles. Ben Rich's publicly quoted statement that "we already have the means to travel among the stars" and that the technology is "locked up in black projects" is interpreted as an implicit confirmation that antigravity-class propulsion exists in the classified program infrastructure.
1971 Australian JIO document
A 1971 document from the Australian Joint Intelligence Organization (JIO), verified as genuine and cited by David Grusch during his congressional testimony period, describes the assessment of U.S. antigravity research by Harry Turner — described as Australia's equivalent of J. Robert Oppenheimer in his role heading Australia's nuclear division. Turner investigated U.S. UFO and antigravity research and concluded that "efforts into antigravity are far deeper than meet the eye" and that Project Blue Book was a "front-facing PR campaign meant to stigmatize UFOs and throw people off the trail." The document represents one of the rare cases of an allied intelligence organization independently assessing the U.S. classified program and concluding that classified antigravity research existed well beyond the publicly acknowledged programs.
Tech tree continuity
A coherent "tech tree" of antigravity development has been traced through the American classified program record: from Thomas Townsend Brown's electrogravitics demonstrations, through Wilbert Smith's discovery that UAP technology remained classified above the hydrogen bomb, through the Australian JIO document confirming deep antigravity research, to contemporary reports from aerospace "graybeards" who respond with a "wink and a smile" when the subject is raised. In Michels' framing, the absence of public antigravity technology reflects not the impossibility of the physics but active suppression — a multi-decade policy of concealment consistent with the broader UAP cover-up architecture.