Ronargus

Have there been any breakthroughs on discovering how to negate or control gravity yet? We know that gravity are waves that are sent out from a mass. The greater the mass the greater the pull of gravity. You would have to be able to control the strength of those waves somehow to move freely above the mass. If UFO's do exist then they have the ability to use and control it. I am not a scientist which is why I asked this question.