The Cuerpo de Bomberos honored him Saturday with a ceremony attended by some 400 fire fighters from the 69 stations in the country. There were paid fire fighters and volunteers.
Firemen said Chang demonstrated sacrifice, honor and discipline.
Chang’s mother, María Eugenia Díaz Romero, attended the ceremony along with her brothers. One brother is a volunteer fire fighter.
The former astronaut is now engaged in building a plasma rocket engine at facilities near Liberia.