Sixto A. González Edick was the Director of the Arecibo Observatory from September 29, 2003, to September 15, 2006. Arecibo Observatory was an astronomical observatory located in Puerto Rico. At the time of González's directorship Arecibo was the world's largest single dish radio telescope. González was the first Puerto Rican in the position of Director of the observatory.

The Arecibo Observatory, also known as the National Astronomy and Ionosphere Center (NAIC) and formerly known as the Arecibo Ionosphere Observatory, is an observatory in Barrio Esperanza, Arecibo, Puerto Rico owned by the US National Science Foundation (NSF).