Posted on Dec 11, 2006 At 6:29 p.m. one August evening, San Antonio's Mission Concepción yielded a centuries-old secret. Receiving the revelation was a volunteer at the mission, George Dawson. He watched as a sunbeam shone just in front of the altar on the transept, the center of the church's cross-shaped floor plan. "Just because priests came into the challenging environment of the Southwest and didn't live in the midst of civilization doesn't mean they didn't know about science, geometry, engineering and architecture," said Ruben Mendoza, a professor who researched this phenomenon across the Southwest for seven years. "The brilliance comes through in the illuminations themselves."
– San Antonio Express-News, Dec. 11, 2006