Some of the great scientific theories unify our knowledge and have fundamentally changed the way we look at the world. Heliocentrism, for example, is the theory that the earth and other planets revolve around the sun. Though at one time it was soundly rejected by the community at large, it best explained the motions of objects in the sky. In science, a theory is an accepted method of interpreting facts. It’s based on evidence, and careful observation and cannot [...]