NASA astronaut Don Pettit, center, walks and smiles, while supported by NASA Flight Surgeons Quinn Dufurrena, left, Rainer Effenhauser, right, and Richard Scheuring, background, during a brief layover in Prestwick, Scotland during his return flight to Houston from Karaganda, Kazakhstan, Sunday, April 20, 2025. Pettit, along with Roscosmos cosmonauts Alexey Ovchinin, and Ivan Vagner, returned to Earth earlier in the day after logging 220 days in space as members of Expeditions 71 and 72 aboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Victor Glover, left, and NASA Flight Surgeon Richard Scheuring, are seen on the flight deck of USS Somerset during Underway Recovery Test-12 off the coast of California, Thursday, March 27, 2025. During the test, NASA and Department of Defense teams are practicing to ensure recovery procedures are validated as NASA plans to send Artemis II astronauts around the Moon and splashdown in the Pacific Ocean. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Victor Glover, left, and NASA Flight Surgeon Richard Scheuring, are seen on the flight deck of USS Somerset during Underway Recovery Test-12 off the coast of California, Thursday, March 27, 2025. During the test, NASA and Department of Defense teams are practicing to ensure recovery procedures are validated as NASA plans to send Artemis II astronauts around the Moon and splashdown in the Pacific Ocean. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Deniz Burnham, left, and ESA (European Space Agency) astronaut Luca Parmitano, are seen talking to NASA Flight Surgeon Richard Scheuring onboard a Navy helicopter after returning from the Crew Module Test Article (CMTA), a full scale mockup of the Orion spacecraft, during Underway Recovery Test-12 off the coast of California, Friday, March 28, 2025. During the test, NASA and Department of Defense teams are practicing to ensure recovery procedures are validated as NASA plans to send Artemis II astronauts around the Moon and splashdown in the Pacific Ocean. Photo Credit: (NASA/Bill Ingalls)