His academic and professional career began as a professor at the School of Sciences and as a researcher at the Physics Institute at UNAM after the university's main campus changed to Ciudad Universitaria. He was the director of the School of Sciences, UNAM, from 1969 to 1973. He also worked for some time at the Observatorio Astronómico Nacional (Spanish for National Astronomy Observatory) at UNAM and the Instituto Nacional de Investigación Científica (Spanish for National Institute of Scientific Research), the latter of which would then become the Consejo Nacional de Humanidades, Ciencias y Tecnologías (Spanish for National Council of Humanities Science and Technology).