14 Facts About Thomas Marshburn

Thomas Marshburn is a veteran of three spaceflights to the International Space Station and holds the record for the oldest person to perform a spacewalk at 61 years old.

Thomas Marshburn obtained a Bachelor of Science degree in Physics from Davidson College, North Carolina, in 1982, and a Master's degree in Engineering Physics from the University of Virginia in 1984.

Thomas Marshburn received a Doctor of Medicine degree from Wake Forest University in 1989, and a Master of Medical Science from the University of Texas Medical Branch in 1997.

Thomas Marshburn trained in emergency medicine and worked in emergency rooms in Texas and Massachusetts.

Thomas Marshburn is a member of the Aircraft Owners and Pilots Association, the American Academy of Emergency Medicine and the Aerospace Medical Association.

Thomas Marshburn joined NASA in November 1994, serving as a flight surgeon at Johnson Space Center in Houston, Texas.

Until he was selected as an astronaut candidate, Thomas Marshburn served as Medical Operations Lead for the ISS.

Thomas Marshburn's activities included development of the biomedical training program for flight surgeons and astronaut crew medical officers, and managing the ISS Health Maintenance System.

Thomas Marshburn was selected in May 2004 to be a NASA astronaut.

Thomas Marshburn completed his Astronaut Candidate Training in February 2006.

Thomas Marshburn was qualified for various technical assignments within the Astronaut Office and future flight assignments as a mission specialist.

In May 2010, Thomas Marshburn served as an aquanaut during the NEEMO 14 mission aboard the Aquarius underwater laboratory, living and working underwater for fourteen days.

On November 11,2021, Thomas Marshburn launched on the SpaceX Crew-3 spaceflight, as part of the long duration Expedition 66 mission onboard the ISS.

Thomas Marshburn performed his fifth EVA with fellow astronaut Kayla Barron on the exterior of the ISS shortly after the mission had begun.