NASA
🇺🇸 Christopher Williams
NASANASAActive
United States•Born 1980•NASA
Born
1980 · Potomac, Maryland, USA
Selected
Astronaut class of 2021
Education
B.A. in Physics, Stanford University; Ph.D. in Physics, MIT; medical physics residency at Harvard Medical School.
1
Missions
30 days (720 hours)
Time in Space
0
EVAs
—
EVA Hours
Flight History
First Flight
February 15, 2026
Last Flight
February 15, 2026
Biography
Medical physicist with an MD and PhD from Harvard, specializing in radiation oncology. Selected in NASA's 2021 astronaut class.
Notable Missions
Expedition 73
Learn More
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