Monday, Feb. 07, 2011
The Sun Orbits the Earth
Much as we may persist in acting like we're at the center of the universe, we obviously know that's hardly the case. Yet Ptolemy's geocentric model, worked out around A.D. 150 (some 1,400 years before Copernicus developed his heliocentric one) was accepted for centuries. According to the cosmos of the ancient astronomer and mathematician in Alexandria, the sun was the fourth sphere from the central, stationary Earth, in between Venus and Mars.