Scientists do see things that support a Flat Earth all the time. They just call it an "interesting phenomenon" and proceed to make things up to explain it, such as atmospheric ducting or ionospheric reflection.
Look at Over the Horizon Radar. The Flat Earth explanation is that the waves are simply proceeding in a straight line, bouncing off their target, and returning. The Round Earth explanation is an elaborate explanation that the waves are bouncing off of a layer of the atmosphere and the ground, sometimes several times, hitting a body below the horizon, and that the wave somehow retraces its path, bouncing through between the atmosphere and the earth and returning to the receiver around the curvature of the earth, appearing as a discernible image, all without being obliterated by scatter along the way.