Colorado pastor Will Duffy’s obsession with the flat-Earth conspiracy theory began with a longtime friend’s post on Facebook.

The Mercator projection, a cylindrical map introduced by Geradus Mercator in 1569, distorts the true size of countries on ...

He said the flat-Earth map that he used, called the azimuthal equidistant map, would not be legitimate if a 24-hour sun existed. Once he saw it with his own eyes, he realized his theory no longer ...

That's it." The experiment also forced Campanella to reconsider the Azimuthal Equidistant (AE) map, a cornerstone of Flat Earth theory. "To me, it means that the AE map no longer works," he said.