text: is there such a thing as anti gravity technology to make aircraft fly in the future?   scientists don't even know what gravity is.  they know how to measure it and account for it in calculations but don't know how it's generated.  they know it's one of the weaker forces in the cosmos and have identified a particle they call a graviton.  once it is known how gravity is generated the next step will be how to counter it, or develop anti-gravity.