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Space · astronaut

Christopher Williams

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION AMERICAN ACTIVE
Career
Time in space
241 d 0 h
Spacewalks
1
7 h 20 m outside
Flights
1
1 landings
Status
Active
Nationality
American
Born
01 Jan 1983
First flight
27 Nov 2025
Most recent flight
27 Nov 2025
Type
Government
Biography

Christopher Williams grw up in Potomac, Maryland and graduated from Stanford University in 2005 with a bachelor’s degree in physics and a doctorate in physics from MIT in 2012, where his research was in astrophysics. Williams is a board-certified medical physicist, completing his residency training at Harvard Medical School before joining the faculty as a clinical physicist and researcher. He most recently worked as a medical physicist in the Radiation Oncology Department at the Brigham and Women's Hospital and Dana-Farber Cancer Institute in Boston. He was the lead physicist for the Institute’s MRI-guided adaptive radiation therapy program. His research focused on developing image guidance techniques for cancer treatments.

Exact date of birth unknown.

Flight log

Flights

1 TOTAL
No.FlightDate
01Soyuz 2.1a | Soyuz MS-2827 Nov 2025
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Source The Space Devs — Launch Library 2 Last checked 29 Sept 2026
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