Ancient and [[medieval]] cosmologists were common, usually oriented around a world view of a stationary, [[flat earth]] as the center of the universe. [[Aristarchus]] understood that the [[earth]] was spherical and circled the [[sun]]. With the increasing sophistication of observing techniques and equipment, a more modern understanding of the universe emerged. | Ancient and [[medieval]] cosmologists were common, usually oriented around a world view of a stationary, [[flat earth]] as the center of the universe. [[Aristarchus]] understood that the [[earth]] was spherical and circled the [[sun]]. With the increasing sophistication of observing techniques and equipment, a more modern understanding of the universe emerged. |