Over the decades antigravity has been the stuff of science fiction, but with the recent government releases of video showing UAPs doing things they we can’t explain and even congressional meetings on the subject, one of the fundamental features of these craft, objects or whatever they are, is their seeming ability to manipulate gravity in way which we have simply no clue about.
Now, maybe this is coming the fevered imagination of AI, or is just the latest form of disinformation or perception-management, possibly using UAP stories as a cover narrative, but what it does do is to make us look again at gravity and the still seemingly gaping holes in our knowledge of what it really is and the attempts to try make it work for us like some of other fundamental forces of nature like electromagnetism.
Almost everything so far which is claimed to have been a form of antigravity is really just using other known forces though there is a very interesting effect which if verified could be the closest we have come so far and we will look at that later.
A plane could be said to be an antigravity machine because it can lift you up and away from the surface of the earth but it’s actually using the pressure differential of a wing traveling through the air at speed to create lift.
A rocket does a similar thing by burning fuel which expands rapidly creating thrust pushing it along, and with enough thrust, it can overcome the pull of the earth’s gravity but its nothing more than a chemical reaction.
And magnets can lift objects and vehicles so that they float above a surface, but this is just the effect repulsive magnetism, like when to try to force two magnets together with the same poles on each, it’s just the electromagnetic force.
In the 1980 & 90’s, Gyroscopic Inertial Thrusters were seen as potential sources of reactionless thrust. When seen in action they appear to be able to generate lift and defy gravity. They use various methods of leverage against the support of a large gyroscope or flywheel, this appears to generate lift when the angle of the gyroscope is changed but after years of theoretical and laboratory testing by NASA and others, no thrust or antigravity forces in free space were found to be produced.
Other so-called antigravity lifters using the Biefeld–Brown effect are in fact using the propulsive force of ion flow. By charging a very lightweight object or lifter with usually a positive high voltage the surrounding air is ionized. As the ions are attracted to the opposite negative electrode usually on the ground they interact with the neural air molecules creating an airflow with enough force levitate the lifter.
Some claimed the that the effect works in a vacuum and therefore it must be is some form interaction between the electric field and the earth’s gravity field and implying that it could be used to create an antigravity effect. When NASA tested it in a vacuum equivalent to that found at a low earth orbit, the effect disappeared proving that it was caused by the propulsive force of ions pushing the air.
Gravity is one of the fundamental forces and thus antigravity would be theoretically impossible. It been proposed that if another force that could attract matter or repel it like a theoretical antigravity, then maybe a machine could be made that simulate that effect.
One of the simplest possible loopholes used to be antimatter. If antimatter fell upward in the Earth’s gravitational field, then it would have been a real form of repulsive gravity and a major crack in our current theories. But in 2023 CERN’s ALPHA-g experiment directly measured the motion of antihydrogen and found that, within the limits of the experiment, antimatter falls downward like normal matter. That does not explain why the universe contains so little antimatter, but it does make the most obvious form of anti-gravity much less likely.
So, what about gravity shielding, similar to a faraday shield for radio waves. Electromagnetic fields are easy to shield because they have both positive and negative charges. By rearranging these charges in a conductor, like the faraday shield, you can cancel out an external field.
To see if any material does have an effect on the weak equivalence principle, this has now been tested to extraordinary level of precision.
The Weak Equivalence Principle or WEP, aka the universality of free fall, states that all uncharged, structureless test particles fall with the same acceleration in a gravitational field, regardless of their mass or composition.
This is like the hammer and feather test the apollo astronauts did on the moon to see if in a vacuum both fall at the same rate.
Universal Attraction, according to WEP, says that all mass-energy acts as a single type of “gravitational charge.” Because there is no known “negative mass,” you cannot create a configuration of matter that cancels out the gravity of say a nearby object like a planet, adding more matter only increases the total gravitational pull.
From 2016 to 2018, the MICROSCOPE satellite compared how different materials fall in Earth orbit and found no violation of the WEP, down to about one part in a quadrillion, or 1 with 15 zero’s after it. If ordinary materials could block or alter gravity in any simple way, that was the kind of experiment where a difference might have started to show up.
In scientific papers published between 1991 and 1993, American scientist Ning Li claimed that antigravity effects could be achieved by if the ions in a Bose–Einstein condensate, that’s a state of matter were all the atoms in it can act like one, could be trapped into high temperature superconduting disc with a time-varying magnetic field, a huge amount of energy could be stored in its lattice structure.
As each ion would spin rapidly it would create a tiny gravitational field, however because all the ions from the Bose–Einstein condensate would be aligned the effect would be magnified by the billions of ions in the disc.
The theory is that this would create a gravity-like field that could either increase or decrease the effect of gravity which Ning Li called AC gravity because it could be attractive or repulsive in nature. She said that experiments in the lab had created beam-like effect above the disc which affected matter for some distance and this backed up her theories.
Even though it created a lot of interest at the time, in 1997 she published another paper that, saying the new measurements with a more sensitive gravimeter had shown it’s effect to be either very small or nonexistent.
In 2000 Ning Li left the University of Alabama and set up her own company AC Gravity LLC and in 2001 was awarded a grant worth just under $450,000 from the DOD to investigate it further. Since then, she had all but disappeared and nothing more has been heard about her research but the company AC Gravity LLC is apparently still in business.
Ning Li died in 2021, and as of now there is still no public, independently repeated demonstration of her AC gravity idea. So her work remains one of the more intriguing anti-gravity claims from the 1990s and early 2000s, but it has not a confirmed technology.
Experiments carried out by Yevgeny Podkletnov in the early 1990’s using rotating Superconducting disks in a magnetic field claimed to decrease the effect of gravity by about 2% on objects placed above the disc and again it appeared to act like a beam above the disc for a considerable distance.
However, these results had not been able to be verified by other scientists. He claimed that the other researchers had not used the same setup and that’s why they couldn’t reproduce the results and when NASA was about to complete the experiments they ran out of funding and the research was taken over by the Dept of Defence and he was shut out of any further research in the US because of his Russian citizenship.
This and Ning Li’s work is said to have prompted Boeing to investigate the effect of rotating superconductors with project GRASP – Gravity Research for Advanced Space Propulsion, with potential uses including space launches, artificial gravity on spacecraft, aircraft propulsion and fuel-less electricity generation. Though others have pointed out that if the effect could be proven and directed into a beam it would be able to be weaponized, creating a steerable artificial gravity force to destabilize missiles, planes, and satellites.
Since the information was released, Boeing has backtracked and said that it was offered the proposal but chose not to fund it with company money but refused comment if it was a black project on the company books.
This is also where the story starts to overlap with the more controversial subject of classified aerospace work and UAP claims. To keep the known science separate from speculation, there is no public evidence that Boeing, NASA, the Department of Defence, or any private contractor has demonstrated working anti-gravity propulsion. What does exist are historical proposals, rumours, and claims around black projects, some of which use the same language of superconductors, field propulsion, gravity beams, or inertial mass reduction.
These and others are based on the idea Gravitoelectromagnetism which looks at analogies between Maxwell’s equations for electromagnetism and Einstein’s equations of relativistic gravitation.
Basically, the premise is that just as a spinning electron creates a magnetic field, then a massive spinning object like the earth would create a drag on spacetime, a bit like when you spin a ball in a viscous fluid like oil. Although this drag was predicted nearly 100 years ago, Einstein called it “frame dragging”, it’s taken the best part of a century to prove if it actually existed with several independent satellite missions which did indeed measure a small but noticeable dragging effect.
This is important because our current theories of gravity are that mass curves the otherwise flat spacetime and this deforming of spacetime is gravity. This is shown quite well with the weight in a rubber sheet experiment that represents the sun and pulls the sheet down in the center. A ball rolling in a straight line follows the curve, this is like the earth which is traveling in a straight line but its caught in the curve of spacetime created by the sun’s mass and so long as the earth’s speed is constant it orbits the sun.
If the frame dragging effect is real, then it is affecting gravity and a moving object near a massive rotating object would experience acceleration not predicted by Newtonian laws. It’s been suggested that this effect is what might be behind the massive jets of gas which are ejected from quasars and galactic nuclei. Rotating supermassive black holes at the centers of galaxies would also create enormous frame-dragging effects.
This is where the spinning superconducting discs in Nign Li’s and the GRASP experiments come in, to simulate this frame-dragging and the gravitational warping effect but on a very much smaller scale.
But the elephant in the room is that we still don’t know what gravity really is. Yes, we have Newtons and Einstein’s laws which predict with amazing accuracy the effects of gravity but these theories don’t tell us how gravity works or what the mechanism is that makes mass bend spacetime, all we know is that gravity is a consequence of mass, the greater the mass the greater the bending of spacetime and hence the greater the gravity.
Although gravity works over huge distances on the grand scale of planets, stars and galaxies we don’t know how it really works on very small things at distances on the atomic scale because its effect is then so weak and difficult to measure. Conversely, we don’t know how it works where gravity is incredibly strong such as in a black hole.
There are many theories as to how gravity actually works but none which have been proven. In quantum mechanics there is a prediction that a force-carrying particle called a graviton might exist even though we have found no proof of their existence. But, as all the other three fundamental forces, the strong nuclear force, the weak nuclear force and the Electromagnetic force have at least one force carrier, its believed there must be one for gravity to, if gravity is a true force.
Another route is quantum gravity. There are now serious proposals for small laboratory experiments that try to test whether gravity can create quantum entanglement between tiny masses. If that was shown, it would suggest gravity has quantum properties. But, again this would not be a gravity-control device; it would be a clue about what gravity really is at the smallest scales.
Gravity appears to have virtually no interaction with any of the other forces and works on any form of matter, even ones which we currently can’t detect, namely the still unknown dark matter. There is no known way to shield against it because it bends spacetime which is the underlying fabric of the universe and as such it’s not really a force. We only feel its effects when we are stopped from moving like when we are standing on the ground but being pulled by the mass of the earth below us. If we were free-falling in space just above the earth we would not feel it at all.
Then there are the observations of the physical universe that show the rate of expansion from the big bang is speeding up instead of the expected slowing down under the effect of gravity. So either we a major problem with our theories of gravity or there is something else that is providing a yet unknown force which is overpowering gravity and pushing the universe apart in all directions which we currently call “Dark Energy”, and like dark matter we can not detect directly but only see the effect it has, a bit like gravity itself.
Dark energy is still one of the strangest parts of this story. It behaves, on the largest scales, like a repulsive effect causing the expansion of the universe to accelerate. But this is not something we know how to collect, focus, or switch on inside a machine. If dark energy is a kind of anti-gravity, it is a cosmic one, not an engineering tool.
So given all this, is true antigravity or some form of gravity control a realistic proposition?, we still don’t know if anything really has come from the research by Ning Li and Project GRASP, it’s been rather quiet on that front in recent years. A source at NASA said that the science appeared sound but the difficulty was in scaling it up.
In the last few years there has been a major public change around UAPs, but not a confirmed scientific one. In 2023, former intelligence official David Grusch told the US Congress that he had been informed of a multi-decade crash retrieval and reverse-engineering programme involving non-human craft. Other witnesses have also described objects that appear to manoeuvre in ways that seem difficult to explain with known aircraft technology.
However, this must be kept separate from established physics. NASA’s 2023 UAP study said there was no conclusive evidence in the peer-reviewed scientific literature showing an extraterrestrial origin for UAPs. The Pentagon’s AARO historical report in 2024 also said it found no verifiable evidence that the US government or private industry had recovered or reverse-engineered extraterrestrial technology. So the fair way to present it is this: there are claims, hearings, and unexplained cases, but there is still no public physical evidence of captured alien anti-gravity technology.
Maybe at some point in the future when we have a much better understanding of what gravity is and how it really works we will find a way to manipulate it as we want, but unless a new breakthrough is announced it still appears to be in the realm of science fiction.
As it stands, antimatter does not fall upward, simple gravity shielding looks even less likely, and the old superconductor claims remain unverified. But some theories, namely warp-drive mathematics, negative energy, quantum gravity, modified gravity, and dark energy all show that gravity is not yet a finished subject. But, the gap between our theories and our understanding the real world engineering that would be required, however, is still enormous.
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