Organizers of an annual conference that brings together people who believe that the Earth is flat are planning a cruise to the purported edge of the planet. They're looking for the ice wall that holds back the oceans. The journey will take place in 2020, the Flat Earth International Conference (FEIC) recently announced on its website. The goal? To test so-called flat-Earthers' assertion that Earth is a flattened disk surrounded at its edge by a towering wall of ice. Believers in a flat Earth argue that images showing a curved horizon are fake and that photos of a round Earth...