Anti-gravity

Anti-gravity is something that scientists are still trying to figure out. It is the idea that an object can be made to move or float in the air without needing to use something like wings or a propeller. This would mean that you wouldn't need a plane or rocket to fly around, instead you could just float in the air without needing any help. Scientists think that if they can figure out how to make anti-gravity work, it will help us travel through the universe more easily!