solar-system-11188_1280 By Br. Juan Macias Marquez, O.P.|2017-09-15T15:18:13-04:00September 15, 2017| About this Brother: Br. Juan Macias Marquez, O.P. Br. Juan Macias Marquez entered the Order of Preachers in 2016. He earned a B.S. in Civil Engineering from the University of Texas at Austin. On DominicanFriars.org