

A Costa Rican immigrant who shattered barriers to become the first Latino NASA astronaut, then launched a private company to revolutionize rocket propulsion.
Franklin Chang-Díaz’s journey began not in a laboratory, but as a boy in San José, Costa Rica, dreaming of space while watching Sputnik cross the sky. At 17, with little English and $50, he moved alone to the United States, determined to become an astronaut. He battled through high school, earned a PhD in applied plasma physics from MIT, and became a naturalized citizen, all while NASA remained a distant goal. His persistence paid off in 1980 when he was selected, making him the first naturalized U.S. citizen from Latin America to wear the astronaut pin. Over seven Space Shuttle missions, a record he shares, he logged over 1,600 hours in space, including three spacewalks. Never one to rest, after retiring from NASA he founded Ad Astra Rocket Company, relentlessly pursuing his vision of the VASIMR plasma rocket, a technology that could slash travel time to Mars. His life is a testament to the power of a singular dream, pursued across borders and disciplines.
1946–1964
The largest generation in history at the time. Shaped by postwar prosperity, the Vietnam War, the sexual revolution, and Watergate. They questioned every institution their parents built — then ran them.
Franklin was born in 1950, placing them squarely in the Baby Boomers. The events that shaped this generation — postwar prosperity, civil rights, Vietnam, and the counterculture — shaped the world they entered and the choices available to them.
The biggest hits of 1950
#1 Movie
Cinderella
Best Picture
All About Eve
#1 TV Show
Texaco Star Theatre
The world at every milestone
Korean War begins
Rosa Parks refuses to give up her bus seat
JFK assassinated in Dallas; Martin Luther King's 'I Have a Dream' speech
Star Trek premieres on television
Martin Luther King Jr. and Robert Kennedy assassinated
Voting age lowered to 18 in the US
John Lennon shot and killed in New York
Hubble Space Telescope launched; Germany reunifies
Y2K passes without incident; contested Bush-Gore election
Deepwater Horizon oil spill; iPad launched
COVID-19 pandemic shuts down the world
He applied to NASA four times before finally being selected as an astronaut candidate.
He was the first naturalized U.S. citizen to become an astronaut.
Asteroid 11573 Chang-Díaz is named in his honor.
He holds a patent for a concept of a fusion-powered spacecraft.
He served as director of the Advanced Space Propulsion Laboratory at the Johnson Space Center.
““The rocket equation is a harsh mistress, and she demands innovation.””