Tom Wiley, PhD., focuses on the beauty and simplicity of Einstein’s ideas on relativity in The Eye of the Beholder: Is General Relativity Beautiful? Science seeks to discover simple relationships in the complex world around us. There is nothing more beautiful than a simple, yet comprehensive, explanation; and general relativity provides the simplest answer of all to the perennial question: Why do the planets move as they do? This is the question that Copernicus, Kepler, Galileo, Newton and Einstein struggled to answer. The ancients explained the baffling behavior of the planets as sphere turning inside spheres. Then they advanced to wheels turning on wheels. John Kepler lifted the veil when he pronounced that the planetary orbits are ellipses. This is a much simpler and clearer picture, but it is not the simplest possible nor the most beautiful. There is nothing simpler than a straight line, and, in general relativity, the planets do indeed travel in straight lines. So the question that has motivated science since the dawn of recorded history has at last received the simplest and most beautiful answer imaginable.