Satellites are on balloons. Google the satalloon program by Google. Nasa also uses balloons. They're launched in Antarctica. Most communication happens through under sea cables and cell towers, such as GPS. GPS is not satellite based. You can't see curvature, ever. You've lied to yourself. Even your God Neil Tyson will tell you you've never seen earth curve ever. The flat earth has been understood throughout history to this very day. Propaganda has lied to you.