Michael Barratt
Barratt in 2010
Michael Reed Barratt

(1959-04-16) April 16, 1959 (age 64)
EducationUniversity of Washington (BS)
Northwestern University (MD)
Wright State University (MS)
Space career
NASA astronaut
Time in space
Currently in space
SelectionNASA Group 18 (2000)
Total EVAs
Total EVA time
5h 6m
MissionsSoyuz TMA-14 (Expedition 19/20)
SpaceX Crew-8
(Expedition 70/71)
Mission insignia

Michael Reed Barratt (born April 16, 1959) is an American physician and a NASA astronaut. Specializing in aerospace medicine, he served as a flight surgeon for NASA before his selection as an astronaut and has played a role in developing NASA's space medicine programs for both the Shuttle-Mir Program and International Space Station. His first spaceflight was a long-duration mission to the International Space Station, as a flight engineer in the Expedition 19 and 20 crew. In March 2011, Barratt completed his second spaceflight as a crew member of STS-133. Barratt pilots the SpaceX Crew-8 mission that launched on 4 March 2024.[1]


Barratt graduated from Camas High School in 1977. He graduated from the University of Washington in 1981 with a Bachelor of Science degree in zoology, going on to earn an M.D. from Northwestern University in 1985. He completed a three-year residency in internal medicine at Northwestern University in 1988; his Chief Residency year was at Veterans Administration Lakeside Hospital in Chicago in 1989. In 1991, Barratt completed both a residency and a Master of Science in aerospace medicine jointly run by Wright State University, NASA, and Wright-Patterson Air Force Base.[2] He is board certified in Internal and Aerospace Medicine.

Barratt holds a private pilot's license and has been qualified on NASA's T-38 Talons.[2]

NASA career

Barratt first worked at NASA Johnson Space Center in May 1991, employed as an aerospace project physician with KRUG Life Sciences. From May 1991 to July 1992, he served on the Health Maintenance Facility Project as manager of the Hyperbaric and Respiratory Subsystems for the defunct Space Station Freedom project. In July 1992 he was assigned as NASA aviation medical examiner working in Space Shuttle Medical Operations.

In July 1993 Barratt was one of a team of the first three Americans invited to witness the recovery of a Soyuz spacecraft. Asked to help evaluate the potential of the Soyuz as a Crew Return Vehicle for a NASA space station, he flew with the recovery team that picked up the crew of Soyuz TM-16 after they landed in Kazakhstan.[2][3] (The Soyuz was ultimately chosen as the return vehicle for the International Space Station).

In January 1994 he was assigned to the Shuttle-Mir Program. He spent over 12 months working and training in the Gagarin Cosmonaut Training Center at Star City as one of two flight surgeons supporting Norman Thagard and his backup Bonnie Dunbar, a role that often included negotiations to resolve different approaches to medicine by NASA and Russian doctors. Barratt and fellow flight surgeon David Ward developed a Mir Supplemental Medical Kit to augment Russian equipment on Mir and developed a program of training for its use, taught to both NASA astronauts and Russian cosmonauts.[2][3]

Thagard launched to Mir aboard Soyuz TM-21 and returned to earth on STS-71; during the 115-day flight, Barratt and Ward effectively served as a CAPCOMs for the NASA Shuttle-Mir team in addition to their duties as flight surgeons.[2][3]

From July 1995 through July 1998, Barratt served as Medical Operations Lead for the International Space Station (ISS). A frequent traveler to Russia, he worked with counterparts at Star City and the Institute of Biomedical Problems as well as other ISS partner centers, developing medical procedures, training, and equipment for ISS. Barratt served as lead crew surgeon for ISS Expedition 1 from July 1998 until selected as an astronaut candidate. He serves as Associate Editor for Space Medicine for the journal Aviation, Space, and Environmental Medicine, and is senior editor of the textbook Principles of Clinical Medicine for Space Flight.[4]

Selected as a mission specialist by NASA in July 2000, Barratt reported for training in August 2000. Following the completion of two years of training and evaluation, he was assigned technical duties in the Astronaut Office Station Operations Branch.[4]


Aquanaut Michael Barratt, Canadian physician Craig McKinley, and Aquarius underwater habitat technician Billy Cooksey work with a remotely operated rover during the NEEMO 7 undersea exploration mission in October 2004.

In October 2004, Barratt served as an aquanaut during the NEEMO 7 mission aboard the Aquarius underwater laboratory, living and working underwater for eleven days. During NEEMO 7 the crew tested technologies and procedures for remote surgery, as well as using virtual reality for telemedicine.[5][6]

Expedition 19/20

Main articles: Expedition 19 and Expedition 20

Expedition 20 Flight Engineer Barratt with a floating tomato in the Zvezda service module of the International Space Station

Barratt was assigned to the Expedition 19 crew in February 2008[7] and launched to the International Space Station in March 2009 aboard Soyuz TMA-14. His stay aboard the ISS continued through until the end of Expedition 20 in October 2009.[8]

During Expedition 20 Barratt performed EVA and IVA together with Gennady Padalka. The first EVA, on June 5, 2009, lasted for 4 hours and 54 minutes, Prepared the Zvezda service module transfer compartment for the arrival of the Poisk module, installed docking antenna for the module, photographed antenna for evaluation on the ground, and photographed the Strela-2 crane.[9][10] The second was an internal spacewalk in the depressurized Zvezda transfer compartment, to replace one of the Zvezda hatches with a docking cone, in preparation for the docking of the Poisk module later in 2009. This spacewalk lasted 12 minutes.[11][12]

Barratt returned to Earth on October 11, 2009 after spending 198 days, 16 hours, and 42 minutes in space[13] on Soyuz TMA-14 along with Padalka and space tourist Guy Laliberté.[14]


Main article: STS-133

Barratt flew as a mission specialist on STS-133, the final flight of Space Shuttle Discovery. The mission launched on February 24, 2011, and landed on March 9, 2011. The mission transported several items to the space station, including the Permanent Multipurpose Module Leonardo, which was left permanently docked at one of the station's ports. The shuttle also carried the third of four ExPRESS Logistics Carriers to the ISS, as well as a humanoid robot called Robonaut.[15] During the mission Barratt was in charge of the robotics activities in the station. The total duration of STS-133 was 12 days, 19 hours, and 4 minutes.[13]

Post-Shuttle era

From January 2012 through April 2013, Barratt was manager of the Human Research Program at NASA Johnson Space Center, researching the health and performance risks associated with long-duration human spaceflight and mitigating them.[4]

In 2013, Barratt served as cavenaut into the ESA CAVES[16] training in Sardinia, alongside Jeremy Hansen, Satoshi Furukawa, Jack Fisher, Aleksei Ovchinin and Paolo Nespoli.

As of 2018, Barratt is involved with the human missions to Mars, and dealing with the health risks of the spaceflight to Mars, especially the risks from cosmic radiation.


Barratt was assigned to be the pilot on SpaceX Crew-8, which launched on March 4, 2024. The crew is expected to stay on the ISS for around half a year.[17]

Personal life

Born in Vancouver, Washington, Barratt considers Camas, Washington, to be his hometown. He is married to Dr. Michelle Lynne Barratt (née Sasynuik); they reside in League City, Texas, and have five children. His father and mother, Joseph and Donna Barratt, reside in Camas. His personal and recreational interests include family and church activities, writing, sailing,[18] and boat restoration and maintenance.[4]


Aerospace Medical Association; American College of Physicians; Alpha Omega Alpha Medical Honor Society; American Institute for the Advancement of Science.[4][clarification needed][failed verification]

Awards and honors

Barratt has received several awards and honors:[4]


Public Domain This article incorporates public domain material from NASA Biography of Michael R. Barratt. National Aeronautics and Space Administration.

  1. ^ "NASA's SpaceX Crew-8 - NASA". Retrieved February 13, 2024.
  2. ^ a b c d e "Michael R. Barratt, M.D." (PDF). ISS Phase 1 History Project. NASA. April 14, 1998. Archived from the original (PDF) on November 17, 2004. Retrieved May 16, 2009.
  3. ^ a b c Burrough, Bryan (1998). Dragonfly: NASA and the Crisis Aboard Mir. HarperCollins. ISBN 0-88730-783-3.
  4. ^ a b c d e f "Astronaut Bio: Michael Reed Barratt" (PDF). NASA. August 2020. Retrieved July 6, 2021.
  5. ^ NASA (October 13, 2004). "NEEMO 7". NASA. Archived from the original on October 30, 2004. Retrieved September 23, 2011.
  6. ^ Canadian Space Agency (August 9, 2004). "CSA - Neemo 7 Mission". Canadian Space Agency. Archived from the original on March 9, 2012. Retrieved September 23, 2011.
  7. ^ "NASA Assigns Crews for STS-127 and Expedition 19 Missions". NASA. 2008. Retrieved February 11, 2008.
  8. ^ "Expedition 20". NASA. May 6, 2009. Retrieved May 17, 2009.
  9. ^ William Harwood for CBS News (June 5, 2009). "Successful spacewalk ends". Spaceflightnow.com. Retrieved June 5, 2009.
  10. ^ NASA (March 2009). "Expedition 20 Press Kit" (.pdf). NASA. Retrieved June 4, 2009.
  11. ^ David Korth, Expedition 20 Spacewalk Flight Director (June 4, 2009). "Expedition 20 Spacewalk Briefing Materials". NASA. Retrieved June 10, 2009.((cite web)): CS1 maint: numeric names: authors list (link)
  12. ^ "Russian "Internal" Spacewalk Complete". NASA. June 10, 2009. Retrieved July 6, 2009.
  13. ^ a b "Michael Barratt". spacefacts. Retrieved May 15, 2018.
  14. ^ "Space station crew sails to safe landing in Kazakhstan". Spaceflight Now.
  15. ^ "Last Flight of Space Shuttle Discovery STS-133". Outer Space Universe. February 19, 2011. Retrieved February 20, 2011.
  16. ^ Sauro, Francesco; De Waele, Jo; Payler, Samuel J.; Vattano, Marco; Sauro, Francesco Maria; Turchi, Leonardo; Bessone, Loredana (July 1, 2021). "Speleology as an analogue to space exploration: The ESA CAVES training programme". Acta Astronautica. 184: 150–166. Bibcode:2021AcAau.184..150S. doi:10.1016/j.actaastro.2021.04.003. hdl:11585/819077. ISSN 0094-5765. S2CID 234819922.
  17. ^ "Space Station Assignments Out for NASA's SpaceX Crew-8 Mission". August 5, 2023. Retrieved August 5, 2023.
  18. ^ Barratt, Mike (October 2010). "The Ultimate 'Offshore' Passage". Cruising World: 82–87.