Bad Rap: Why B.o.B Is Wrong About a Flat Earth

A throwdown between a rapper and an astrophysicist centers on whether the Earth is a sphere, a scientific question that was supposedly settled in the third century B.C. While the ancient Greeks were among the first to discern that the Earth is a sphere, there were still people who didn't think it could be true, because, well, look around. In the last century a whole society — the Flat Earth Society — has grown up around it.