We don’t know if antimatter is attracted, neutral to, or repelled by matter’s gravitational field. Those here claiming it’s the same as normal matter in that regard are being unscientific and talking out of their poop chutes in ignorance. shame, shame. Some of them have even studied science and should know better. What is required to answer that question is EXPERIMENTAL PROOF. And as it happens there are at least two ongoing experiments to see what exactly antimatter does in a gravitational field. SO, here ya go, the experiments ongoing at CERN to see how antimatter really acts in the Earth’s gravitational field.