Franklin Chang Díaz

Franklin Chang Díaz. He is a pioneering Costa Rican-American physicist, former NASA astronaut, and engineer renowned for his record-tying seven Space Shuttle missions. After a distinguished career with NASA, he founded the technology company Ad Astra Rocket Company to develop advanced plasma propulsion systems for deep space exploration. His work bridges the fields of spaceflight and fusion power research, earning him recognition as a leading figure in aerospace engineering.

Early Life and Education

He was born in San José, Costa Rica, and developed an early fascination with space exploration inspired by the launch of Sputnik 1. At age 17, he moved to the United States to pursue his education, initially living with relatives in Hartford, Connecticut. He earned a Bachelor of Science degree in mechanical engineering from the University of Connecticut in 1973. He then pursued doctoral studies in applied plasma physics at the Massachusetts Institute of Technology (MIT), where his research at the MIT Plasma Science and Fusion Center focused on fusion power and magnetic confinement, receiving his Ph.D. in 1977.

Career

His professional career began as a research scientist at the Charles Stark Draper Laboratory in Cambridge, Massachusetts, working on the design of fusion reactor concepts. In 1980, he was selected as an astronaut candidate by NASA as part of Group 9. At NASA, he served in various technical roles, including as a member of the Astronaut Office Space Station Support Office and as a CAPCOM (Capsule Communicator) in Mission Control. After retiring from NASA in 2005, he founded and serves as CEO of the Ad Astra Rocket Company, which is developing the Variable Specific Impulse Magnetoplasma Rocket (VASIMR) engine. The company has conducted testing at its facilities in Webster, Texas, and in partnership with the International Space Station program.

Spaceflight Experience

A veteran of seven Space Shuttle flights, he tied the record for the most spaceflights by any astronaut. His first mission was STS-61-C aboard Space Shuttle *Columbia* in 1986, which deployed the SATCOM KU-1 satellite. He subsequently served as a mission specialist on STS-34 (1989), which deployed the *Galileo* probe to Jupiter, and on STS-46 (1992), which deployed the Tethered Satellite System. He flew on STS-60 (1994), the first joint NASA/Russian mission featuring a Roscosmos cosmonaut on the Space Shuttle. His later missions included STS-75 (1996), which re-flew the tethered satellite experiment, STS-91 (1998), the final Space Shuttle docking mission to the Mir space station, and STS-111 (2002), a flight to the International Space Station that delivered the Mobile Base System.

Awards and Honors

His contributions have been recognized with numerous prestigious awards. He received the NASA Distinguished Service Medal and the NASA Exceptional Service Medal. The United Nations awarded him the U.N. Peace Medal, and he was inducted into the NASA Astronaut Hall of Fame. He has been awarded the Order of Juan Mora Fernández by the Government of Costa Rica and the Cross of the Officer of the Order of Christopher Columbus by the Government of the Dominican Republic. Scientific institutions such as the American Institute of Aeronautics and Astronautics and the American Astronautical Society have also honored his work in propulsion and plasma physics.

Personal Life

He is married to former NASA flight controller Peggy Marguerite Doncaster, and they have four children. He maintains strong ties to his native Costa Rica, where he is a national hero and has an avenue, the Avenida Franklin Chang Díaz, named in his honor in San José. He holds dual citizenship in Costa Rica and the United States. An advocate for science education, he established the Fundación Franklin Chang Díaz in Costa Rica to promote STEM education and technological development in Latin America.

Category:1950 births Category:Living people Category:American astronauts Category:Costa Rican astronauts Category:NASA astronauts Category:Massachusetts Institute of Technology alumni Category:University of Connecticut alumni