Franklin Chang-Díaz

Franklin Chang-Díaz
Chang-Díaz in 1997
Born
Franklin Ramón Chang-Díaz

(1950-04-05) April 5, 1950
San José, Costa Rica
EducationUniversity of Connecticut (BS)
Massachusetts Institute of Technology (MS, ScD)
ChildrenSonia
Space career
NASA astronaut
Time in space
66d 18h 16m
SelectionNASA Group 9 (1980)
MissionsSTS-61-C
STS-34
STS-46
STS-60
STS-75
STS-91
STS-111
Mission insignia

Franklin Ramon Chang-Díaz (born April 5, 1950, San José, Costa Rica) is a Costa Rican-American mechanical engineer, physicist, and former NASA astronaut. He is the sole founder and CEO of Ad Astra Rocket Company as well as a member of the Cummins' board of directors. He became an American citizen in 1977.

He is a veteran of seven Space Shuttle missions, tying the record, as of 2021 for the most spaceflights (a record set two months earlier by Jerry L. Ross). He was the third Latin American, and the first Latin American immigrant NASA astronaut selected to go into space. Chang-Díaz is a member of NASA's Astronaut Hall of Fame.