Antigravity: Physics, Experiments, Claims, and What Science Supports

There is no verified antigravity technology at present. Some theoretical ideas involve exotic matter, negative energy, or modifications to gravity, but they remain speculative and experimentally unconfirmed.

No verified, reproducible technology has been demonstrated that cancels or shields gravity in the way popularly described as antigravity.

Current experimental evidence indicates that antimatter behaves gravitationally like normal matter within measurement limits. Antihydrogen experiments are improving precision, but no confirmed upward gravitational effect has been established.

Magnets can levitate objects by producing forces that oppose gravity. This is magnetic levitation, not antigravity. The gravitational field remains present.

Gravitational shielding is the idea that a material or field could block or reduce gravity. This has not been experimentally validated and conflicts with standard gravitational physics unless new physics is involved.

Negative mass is a hypothetical concept in which an object would have mass with unusual inertial or gravitational behavior. It remains speculative and has not been demonstrated as a practical material.

Superconductors enable important levitation effects, such as flux pinning and magnetic levitation, but there is no accepted experimental evidence that they produce gravitational shielding or antigravity.