NASA astronaut and Boeing Crew Flight Test Pilot Suni Williams Suni Williams uses a HAM radio and talks to students from Banda Aceh, Indonesia, answering their questions about life in space and other space related subjects aboard the International Space Station.

jsc2018e067716_alt (Aug. 1, 2018) --- NASA Astronaut Suni Williams has been assigned to the second flight of Boeing’s CST-100 Starliner.

Commercial Crew Program (CCP) astronaut Suni Williams in ISS EVA POGO training in SVMF POGO.

Commercial Crew Program (CCP) astronaut Suni Williams in ISS EVA POGO training in SVMF POGO.

Commercial Crew Program (CCP) astronaut Suni Williams in ISS EVA POGO training in SVMF POGO.

Commercial Crew Program astronaut training with Boeing PCM crew members Suni Williams & Josh Cassada during ISS EVA Maintenance 1 training at the NBL.

Commercial Crew Program astronaut training with Boeing PCM crew members Suni Williams & Josh Cassada during ISS EVA Maintenance 1 training at the NBL.

Commercial Crew Program astronaut training with Boeing PCM crew members Suni Williams & Josh Cassada during ISS EVA Maintenance 1 training at the NBL.

CCP astronauts Suni Williams and Josh Cassada during ISS EVA Maintenance 1G training.

CCP astronauts Suni Williams and Josh Cassada during ISS EVA Maintenance 1G training.

Astronaut Suni Williams poses with a poster of herself as she tours ULA facility in Decatur, Al

iss071e379502 (July 23, 2024) --- Clockwise from left, NASA astronauts Suni Williams, Mike Barratt, and Butch Wilmore work on lab maintenance tasks aboard the International Space Station. Williams and Wilmore are the Pilot and Commander, respectively, for Boeing's Crew Flight Test and Barratt is an Expedition 71 Flight Engineer.

iss072e487421 (Jan. 16, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams is pictured during a spacewalk outside the International Space Station where she replaced a rate gyro assembly that helps maintain the orientation of the orbital outpost.

NASA Astronaut Suni Williams, fully suited in SpaceX’s spacesuit, interfaces with the display inside a mock-up of the Crew Dragon spacecraft in Hawthorne, California, during a testing exercise on Tuesday, April 3, 2018.

iss072e423916 (Jan. 3, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams takes a selfie portrait with a pair of Astrobee robotic free-flyers behind her inside the International Space Station's Kibo laboratory module.

iss072e517812 (Jan. 21, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams is pictured during maintenance activities inside the International Space Station's Unity module.

iss072e451674 (Jan. 9, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams is pictured as she tries on and evaluates her spacesuit in a pressurized configuration aboard the International Space Station's Quest airlock.

iss072e403402 (Dec. 24, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams assembles research hardware inside the International Space Station's cupola while orbiting 261 miles above the Pacific Ocean west of Nicaragua.

NASA astronauts Suni WIlliams and Eric Boe check the Boeing Mission Simulator at the Boeing facility in St. Louis, Missouri, prior to its completion and shipment to NASA's Johnson Space Center in Houston. The simulator is a full-scale mockup of Boeing's Starliner spacecraft. The simulator will be used to train crews to fly the spacecraft.

NASA astronauts Suni WIlliams and Eric Boe check the Boeing Mission Simulator at the Boeing facility in St. Louis, Missouri, prior to its completion and shipment to NASA's Johnson Space Center in Houston. The simulator is a full-scale mockup of Boeing's Starliner spacecraft. The simulator will be used to train crews to fly the spacecraft.

iss071e403704 (July 24, 2024) --- NASA astronauts (from left) Tracy C. Dyson, Expedition 71 Flight Engineer, and Suni Williams, Pilot for Boeing's Crew Flight Test, work inside the NanoRacks Bishop airlock located in the port side of the International Space Station's Tranquility module. The duo installed the the ArgUS Mission-1 technology demonstration hardware inside Bishop for placement outside in the vacuum of space to test the external operations of communications, computer processing, and high-definition video gear.

From left, Starliner Flight Crew Integration Manager Tony Ceccacci, and NASA astronauts Barry “Butch” Wilmore and Sunita “Suni” Williams participate in a mission rehearsal at Boeing’s Avionics and Software Integration Lab in Houston.

iss072e742802 (March 9, 2025) --- NASA astronaut and Expedition 72 Flight Engineer Suni Williams peers at the Earth below from inside the International Space Station's cupola. The orbital outpost was soaring 260 miles above the Indian Ocean at the time of this photograph.

iss072e391424 (Dec. 16, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams shows off a holiday decoration of a familiar reindeer aboard the International Space Station. The decoration was crafted with excess hardware, cargo bags, and recently-delivered Santa hats.

iss072e595424 (Jan. 30, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams is attached to the Canadarm2 robotic arm's latching end effector while being maneuvered to her worksite 264 miles above the South Pacific Ocean. Williams removed and stowed a radio frequency group antenna assembly during the five-hour and 26-minute spacewalk outside the International Space Station.

iss072e595426 (Jan. 30, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams is attached to the Canadarm2 robotic arm's latching end effector while being maneuvered to her worksite 264 miles above the South Pacific Ocean. Williams removed and stowed a radio frequency group antenna assembly during the five-hour and 26-minute spacewalk outside the International Space Station.

iss071e673574 (Sept. 17, 2024) -- NASA astronaut and Expedition 71 Flight Engineer Suni Williams smiles for a photo aboard the International Space Station.

iss071e379489 (July 23, 2024) --- Clockwise from bottom, NASA astronauts Mike Barratt, Butch Wilmore, and Suni Williams are at work inside the International Space Station's Unity module. The trio was configuring the ArgUS Mission 1 technology demonstration hardware to test the external operations of communications, computer processing, and high-definition video gear in the vacuum of space.

Astronauts selected to train for the flight tests of NASA’s Commercial Crew Program participated in a panel discussion with employees at NASA’s Kennedy Space Center in Florida. From left, are Kennedy Center Director Bob Cabana, Commercial Crew Program Manager Kathy Lueders, and astronauts Eric Boe and Suni Williams.

Astronauts selected to train for the flight tests of NASA’s Commercial Crew Program participated in a panel discussion with employees at NASA’s Kennedy Space Center in Florida. From left, are Kennedy Center Director Bob Cabana, Commercial Crew Program Manager Kathy Lueders, and astronauts Eric Boe and Suni Williams.

Astronauts selected to train for the flight tests of NASA’s Commercial Crew Program participated in a panel discussion with employees at NASA’s Kennedy Space Center in Florida. From left, are Kennedy Center Director Bob Cabana, Commercial Crew Program Manager Kathy Lueders, and astronauts Eric Boe and Suni Williams.

Astronauts selected to train for the flight tests of NASA’s Commercial Crew Program participated in a panel discussion with employees at NASA’s Kennedy Space Center in Florida. From left, are Kennedy Center Director Bob Cabana, Commercial Crew Program Manager Kathy Lueders, and astronauts Eric Boe and Suni Williams.

iss072e282112 (Nov. 29, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams is pictured inside the vestibule between the SpaceX Dragon cargo spacecraft and the forward port on the International Space Station's Harmony module.

iss072e143163 (Nov. 1, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams replaces particulate filters on the water recovery system, a component of the Tranquility module's waste and hygiene compartment, the International Space Station's bathroom.

iss071e513842 (Aug. 9, 2024) --- NASA astronauts Butch Wilmore and Suni Williams, Boeing's Crew Flight Test Commander and Pilot respectively, inspect safety hardware aboard the International Space Station.

iss072e013206 (Oct. 5, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams calls down to students in Shepperton, United Kingdom, on the International Space Station's ham radio and answers their questions about living in space.

iss072e403385 (Dec. 24, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams checks research components inside the Kibo laboratory module's Advanced Plant Habitat aboard the International Space Station.

iss072e099560 (Oct. 25, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams is pictured at the galley inside the International Space Station's Unity module at the beginning of her day.

iss072e280674 (Nov. 24, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams poses for a fun holiday season portrait while speaking on a ham radio inside the International Space Station's Columbus laboratory module.

iss072e403985 (Dec. 24, 2024) --- NASA astronauts Nick Hague and Suni Williams, Expedition 72 flight engineer and commander respectively, share snacks and goodies on Christmas Eve inside the gallery of the International Space Station's Unity module.

iss072e063703 (Oct. 15, 2024) --- NASA astronauts Nick Hague and Suni Williams, Expedition 72 Flight Engineer and Commander respectively, discuss orbital lab maintenance procedures aboard the International Space Station.

iss072e189112 (Nov. 15, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams smiles for a portrait inside the International Space Station's Zvezda service module during dinner time.

iss072e281303 (Nov. 29, 2024) --- Expedition 72 Commander Suni Williams and Flight Engineer Don Pettit, both NASA astronauts, pose for a portrait in front of the Advanced Plant Habitat located inside the International Space Station's Kibo laboratory module. The Plant Habitat provides a large, enclosed, environmentally controlled chamber designed to support commercial and fundamental plant research in microgravity.

iss072e143491 (Nov. 1, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams displays the Space Tissue Equivalent Dosimeter (SpaceTED) hardware inside the International Space Station's Kibo laboratory module. SpaceTED is a technology demonstration that can measure radiation dosages and characterize the radiaton environment in microgravity to protect crew members and spacecraft hardware.

iss072e143492 (Nov. 1, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams displays the Space Tissue Equivalent Dosimeter (SpaceTED) hardware inside the International Space Station's Kibo laboratory module. SpaceTED is a technology demonstration that can measure radiation dosages and characterize the radiaton environment in microgravity to protect crew members and spacecraft hardware.

iss072e574908 (Jan. 30, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams seemingly hangs upside down while attached to the Canadarm2 robotic arm's latching end effector during a five-hour and 26 minute spacewalk to remove and stow a radio frequency group antenna assembly. The orbital outpost was soaring 260 miles above Russia near the Sea of Azov at the time of this photograph.

jsc2025e032669 (March 18, 2025) --- NASA astronaut Suni Williams returns to Johnson Space Center's Ellington Field in Houston after completing a long-duration science mission aboard the International Space Station. After undocking from the orbiting laboratory, NASA’s SpaceX Crew-9 splashed down at 5:57 p.m. EDT on Tuesday, March 18, in the Gulf of America near Tallahassee, Florida.

jsc2025e032539 (March 18, 2025) --- NASA astronaut Suni Williams returns to Johnson Space Center's Ellington Field in Houston after completing a long-duration science mission aboard the International Space Station and is greeted by Steve Koerner, Johnson's acting center director. After undocking from the orbiting laboratory, NASA’s SpaceX Crew-9 splashed down at 5:57 p.m. EDT on Tuesday, March 18, in the Gulf of America near Tallahassee, Florida.

jsc2025e032672 (March 18, 2025) --- NASA astronaut Suni Williams returns to Johnson Space Center's Ellington Field in Houston after completing a long-duration science mission aboard the International Space Station. After undocking from the orbiting laboratory, NASA’s SpaceX Crew-9 splashed down at 5:57 p.m. EDT on Tuesday, March 18, in the Gulf of America near Tallahassee, Florida.

Boeing CST-100 MOST CFT Ascent Sim for Eric Boe, Suni Williams and Barry "Butch" Wilmore.

iss072e572188 (Jan. 28, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams works in the Quest airlock readying a pair of spacesuits that she and NASA astronaut Nick Hague will wear durimg a spacewalk to remove radio communications hardware and search for microbes outside the International Space Station.

iss072e488376 (Jan. 16, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams is pictured during a six-hour spacewalk for science and maintenance on the International Space Station. At upper right, is the SpaceX Dragon crew spacecraft docked to the Harmony module's space-facing port.

iss072e363109 (Dec. 13, 2024) --- NASA astronauts Suni Williams and Don Pettit, Expedition 72 Commander and Flight Engineer respectively, take a break from science maintenance activities and pose for a selfie-portrait aboard the International Space Station's Harmony module.

iss072e280684 (Nov. 24, 2024) --- NASA astronauts Don Pettit and Suni Williams, Expedition 72 flight engineer and commander respectively, pose for a fun holiday season portrait while speaking on a ham radio inside the International Space Station's Columbus laboratory module.

iss072e574856 (Jan. 30, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams works outside the International Space Station during a five-hour and 26-minute spacewalk to remove and stow a radio frequency group antenna assembly. The orbital outpost was soaring 260 miles above Kazakhstan at the time of this photograph.

iss072e014350 (Oct. 4, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams checks procedures on a computer tablet while installing experiment samples inside the International Space Station's Combustion Integrated Rack. Williams was conducting research operations for the Solid Fuel Ignition and Extinction experiment that explores how a variety of materials burn in weightlessness to improve fire safety on spacecraft.

iss072e126623 (Oct. 29, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams wears a pirate's eye patch in celebration of Halloween while orbiting Earth aboard the International Space Station. Williams was also a wearing a thigh cuff on her left leg testing its ability to prevent space-caused fluid shifts toward a crew member's head safeguarding eye health in microgravity.

iss072e308289 (Dec. 2, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams displays science hardware housing bacteria and yeast samples for the Rhodium Biomanufacturing 03 study that may enable the production of food and medicine in space. Williams was in the cupola, the International Space Station's "window to the world," as the orbital outpost soared 258 miles above a cloudy Pacific Ocean off the coast of Costa Rica.

NASA astronaut Suni Williams speaks with attendees of NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

iss072e616384 (Feb. 11, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams measures her mass using a specialized device inside the International Space Station's Zvezda service module. The mass measurement device applies a known force to an attached astronaut and measures the resulting acceleration to acquire the crew member's mass. The result is based on a form of Newton's Second Law of Motion.

iss072e422426 (Dec. 27, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams wears a virtual reality headset and practices emergency maneuvers a spacewalker would use in the unlikely event they became untethered from the International Space Station. During spacewalks astronauts wear U.S. spacesuits with a jetpack installed called a SAFER, or Simplified Aid for EVA (Extra Vehicular Activity) Rescue, that contains a controller and thrusters used to guide a crew member back to the safety of the orbital outpost.

iss072e422431 (Dec. 27, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams wears a virtual reality headset and practices emergency maneuvers a spacewalker would use in the unlikely event they became untethered from the International Space Station. During spacewalks astronauts wear U.S. spacesuits with a jetpack installed called a SAFER, or Simplified Aid for EVA (Extra Vehicular Activity) Rescue, that contains a controller and thrusters used to guide a crew member back to the safety of the orbital outpost.

NASA astronaut Suni Williams speaks with employees of Boeing, Wednesday, Sept. 17, 2025, at the company’s headquarters in Arlington, Va. Williams and Butch Wilmore launched aboard Boeing’s Starliner spacecraft to the International Space Station as part of the agency’s Boeing Crew Flight Test and were integrated into Expedition 71/72 following the uncrewed return of Starliner. The pair returned to Earth with NASA’s SpaceX Crew 9 astronauts. Photo Credit: (NASA/Joel Kowsky)

iss072e574914 (Jan. 30, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams works outside the International Space Station during a five-hour and 26-minute spacewalk to remove and stow a radio frequency group antenna assembly. In the left foreground, is the latching end effector of the Canadarm2 robotic arm. The orbital outpost was soaring 258 miles above the Pacific Ocean near the coast of Mexico at the time of this photograph.

iss072e488176 (Jan. 16, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams (center) is dwarfed near the SpaceX Dragon crew spacecraft as she replaces a planar reflector, advanced navigational hardware visiting vehicles use when approaching the International Space Station. Dragon is docked to the Harmony module's space-facing port which rests in between the Kibo and Columbus laboratory modules. 263 miles below is the Atlantic Ocean near the coast of Brazil.

iss072e488017 (Jan. 16, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams (center) is dwarfed near the SpaceX Dragon crew spacecraft as she replaces a planar reflector, advanced navigational hardware visiting vehicles use when approaching the International Space Station. Dragon is docked to the Harmony module's space-facing port which rests in between the Kibo and Columbus laboratory modules. 267 miles below is the Pacific Ocean east of New Zealand.

iss072e616432 (Feb. 11, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams displays production packs containing geneticallly engineered yeast and edible media for incubation to activate yeast growth. The BioNutrients investigation explores using the engineered yeast to produce on-demand nutrients and avoid vitamin deficiencies for crews on long-term missions. The samples are later frozen then returned to Earth to analyze their ability promote crew health and improve the preservation of probiotics.

iss072e363105 (Dec. 13, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams photographs the European Materials Ageing (EMA) experiment hardware beng set up inside the International Space Station's Harmony module. EMA contains a variety of samples that will be exposed to the space environment to learn how to improve the development of space hardware and applications for missions to the Moon, Mars, and beyond. The external investigation will operate outside the Columbus laboratory module for about a year.

iss072e363243 (Dec. 13, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams installs the European Materials Ageing experiment hardware inside the Nanoracks Bishop airlock. The external investigation will be robotically removed from Bishop, installed on the Bartolomeo research platform attached to the outside of the Columbus laboratory module, and expose a variety of materials to the vacuum of space for about a year.

iss072e574847 (Jan. 30, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams works outside the International Space Station during a five-hour and 26-minute spacewalk to remove and stow a radio frequency group antenna assembly. In the left foreground, is the latching end effector of the Canadarm2 robotic arm. The orbital outpost was soaring 267 miles above New Zealand at the time of this photograph.

iss072e363226 (Dec. 13, 2024) --- NASA astronauts Suni Williams and Nick Hague, Expedition 72 Commander and Flight Engineer respectively, install the European Materials Ageing experiment hardware inside the Nanoracks Bishop airlock. The external investigation will be robotically removed from Bishop, installed on the Bartolomeo research platform attached to the outside of the Columbus laboratory module, and expose a variety of materials to the vacuum of space for about a year.

iss072e593598 (Feb. 4, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams monitors an Astrobee robotic free-flyer outfitted with tentacle-like arms containing gecko-like adhesive pads preparing to grapple a "capture cube." The toaster sized Astrobee, with the experimental grippers attached, demonstrated autonomous detection and capture techniques that may be used to remove space debris and service satellites in low Earth orbit.

iss072e593606 (Feb. 4, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams monitors an Astrobee robotic free-flyer outfitted with tentacle-like arms containing gecko-like adhesive pads as it grapples a "capture cube." The toaster sized Astrobee, with the experimental grippers attached, demonstrated autonomous detection and capture techniques that may be used to remove space debris and service satellites in low Earth orbit.

iss072e575164 (Jan. 30, 2025) --- NASA astronaut and Expedition 72 Commander Suni Williams' camera is reflected in her spacesuit helmet's visor as she points it toward herself and takes an out-of-this-world "space-selfie" during a five-hour and 26-minute spacewalk. The International Space Station was orbiting 263 miles above the Pacific Ocean at the time of this photograph.

iss072e189028 (Nov. 15, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams checks out the Astrobee robotic free-flyer in the Kibo laboratory module outfitted with tentacle-like arms containing gecko-like adhesive pads to demonstrate satellite capture techniques. Development of this robotic technology may increase the life span of satellites and enable the removal of space debris.

iss072e363182 (Dec. 13, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams assembles the European Materials Ageing experiment hardware for installation inside the Nanoracks Bishop airlock. The external investigation will be robotically removed from Bishop, installed on the Bartolomeo research platform attached to the outside of the Columbus laboratory module, and expose a variety of materials to the vacuum of space for about a year.

iss072e308314 (Dec. 2, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams swaps a hard drive inside the Advanced Space Experiment Processor-4 (ADSEP-4). ADESP-4 is a research facility that processes samples for numerous types of experiments supporting biology and physics research aboard the International Space Station, the SpaceX Dragon cargo spacecraft, and the Northrop Grumman Cygnus resupply ship.

iss072e146339 (Nov. 7, 2024) --- NASA astronaut and Expedition 72 Commander Suni Williams points to the Advanced Space Experiment Processor-4 (ADSEP-4), a sample processor that can perform research operations on the SpaceX Dragon cargo spacecraft, the Northrop Grumman Cygnus cargo spacecraft, and the International Space Station.

NASA astronauts Butch Wilmore, left, and Suni Williams, center, speak with employees of Boeing alongside Steve Parker, executive vice president, president and CEO of Boeing Defense, Space and Security, Wednesday, Sept. 17, 2025, at the company’s headquarters in Arlington, Va. Williams and Wilmore launched aboard Boeing’s Starliner spacecraft to the International Space Station as part of the agency’s Boeing Crew Flight Test and were integrated into Expedition 71/72 following the uncrewed return of Starliner. The pair returned to Earth with NASA’s SpaceX Crew 9 astronauts. Photo Credit: (NASA/Joel Kowsky)

NASA astronauts Suni Williams, center, and Butch Wilmore, left, speak with employees of Boeing alongside Steve Parker, executive vice president, president and CEO of Boeing Defense, Space and Security, Wednesday, Sept. 17, 2025, at the company’s headquarters in Arlington, Va. Williams and Wilmore launched aboard Boeing’s Starliner spacecraft to the International Space Station as part of the agency’s Boeing Crew Flight Test and were integrated into Expedition 71/72 following the uncrewed return of Starliner. The pair returned to Earth with NASA’s SpaceX Crew 9 astronauts. Photo Credit: (NASA/Joel Kowsky)

NASA astronauts Suni Williams, center, Butch Wilmore, left, and Steve Parker, executive vice president, president and CEO of Boeing Defense, Space and Security, listen to a question as they speak with employees of Boeing, Wednesday, Sept. 17, 2025, at the company’s headquarters in Arlington, Va. Williams and Wilmore launched aboard Boeing’s Starliner spacecraft to the International Space Station as part of the agency’s Boeing Crew Flight Test and were integrated into Expedition 71/72 following the uncrewed return of Starliner. The pair returned to Earth with NASA’s SpaceX Crew 9 astronauts. Photo Credit: (NASA/Joel Kowsky)

NASA astronauts Suni Williams, center, and Butch Wilmore, left, speak with employees of Boeing alongside Steve Parker, executive vice president, president and CEO of Boeing Defense, Space and Security, Wednesday, Sept. 17, 2025, at the company’s headquarters in Arlington, Va. Williams and Wilmore launched aboard Boeing’s Starliner spacecraft to the International Space Station as part of the agency’s Boeing Crew Flight Test and were integrated into Expedition 71/72 following the uncrewed return of Starliner. The pair returned to Earth with NASA’s SpaceX Crew 9 astronauts. Photo Credit: (NASA/Joel Kowsky)

NASA astronauts Butch Wilmore, left, and Suni Williams, center, speak with employees of Boeing alongside Steve Parker, executive vice president, president and CEO of Boeing Defense, Space and Security, Wednesday, Sept. 17, 2025, at the company’s headquarters in Arlington, Va. Williams and Wilmore launched aboard Boeing’s Starliner spacecraft to the International Space Station as part of the agency’s Boeing Crew Flight Test and were integrated into Expedition 71/72 following the uncrewed return of Starliner. The pair returned to Earth with NASA’s SpaceX Crew 9 astronauts. Photo Credit: (NASA/Joel Kowsky)

NASA astronauts Suni Williams, center, and Butch Wilmore, left, speak with employees of Boeing alongside Steve Parker, executive vice president, president and CEO of Boeing Defense, Space and Security, Wednesday, Sept. 17, 2025, at the company’s headquarters in Arlington, Va. Williams and Wilmore launched aboard Boeing’s Starliner spacecraft to the International Space Station as part of the agency’s Boeing Crew Flight Test and were integrated into Expedition 71/72 following the uncrewed return of Starliner. The pair returned to Earth with NASA’s SpaceX Crew 9 astronauts. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Suni Williams, pilot for Boeing’s Crew Flight Test (CFT), checks her spacesuit and helmet during a crew validation test inside the Astronaut Crew Quarters at NASA’s Kennedy Space Center in Florida on Oct. 18, 2022. Williams, along with NASA astronauts Barry “Butch” Wilmore, CFT commander, and Mike Fincke, CFT backup spacecraft test pilot, with assistance from the Boeing team, successfully completed the validation test during which they suited up and tested out the pressurized crew module to ensure seat fit, suit functionality, cabin temperature, audio system, and day of launch operations. Boeing’s CFT is scheduled to launch in April 2023.

NASA astronaut Suni Williams, pilot for Boeing’s Crew Flight Test (CFT), checks her spacesuit and helmet during a crew validation test inside the Astronaut Crew Quarters at NASA’s Kennedy Space Center in Florida on Oct. 18, 2022. Williams, along with NASA astronauts Barry “Butch” Wilmore, CFT commander, and Mike Fincke, CFT backup spacecraft test pilot, with assistance from the Boeing team, successfully completed the validation test during which they suited up and tested out the pressurized crew module to ensure seat fit, suit functionality, cabin temperature, audio system, and day of launch operations. Boeing’s CFT is scheduled to launch in April 2023.

NASA astronaut Suni Williams, pilot for Boeing’s Crew Flight Test (CFT), checks her spacesuit during a crew validation test inside the Astronaut Crew Quarters at NASA’s Kennedy Space Center in Florida on Oct. 18, 2022. Williams, along with NASA astronauts Barry “Butch” Wilmore, CFT commander, and Mike Fincke, CFT backup spacecraft test pilot, with assistance from the Boeing team, successfully completed the validation test during which they suited up and tested out the pressurized crew module to ensure seat fit, suit functionality, cabin temperature, audio system, and day of launch operations. Boeing’s CFT is scheduled to launch in April 2023.

NASA astronauts Barry “Butch” Wilmore and Sunita "Suni" Williams arrive aboard T-38 jet aircraft at the Launch and Landing Facility at Kennedy Space Center in Florida on Dec. 17, 2020. The astronauts are at Kennedy to prepare for their flights on Boeing’s CST-100 Starliner. Wilmore and Williams will command the Crew Flight Test and the Starliner-1 mission, respectively. The crew members will fly to the International Space Station as part of the agency’s Commercial Crew Program.

NASA astronauts arrive aboard T-38 jet aircraft at the Launch and Landing Facility at Kennedy Space Center in Florida on Dec. 17, 2020. The astronauts are at Kennedy to prepare for their flights to the International Space Station on Boeing’s CST-100 Starliner, as part of the agency’s Commercial Crew Program. At right is Sunita “Suni” Williams. At left is Barry “Butch” Wilmore. Wilmore and Williams will command the company’s Crew Flight Test and the Starliner-1 mission, respectively.

NASA astronauts Barry “Butch” Wilmore, left, and Sunita "Suni" Williams visit the Commercial Crew and Cargo Processing Facility at Kennedy Space Center in Florida on Dec. 17, 2020. The astronauts are at Kennedy to prepare for their flights to the International Space Station on Boeing’s CST-100 Starliner, as part of the agency’s Commercial Crew Program. Wilmore and Williams will command the Crew Flight Test and the Starliner-1 mission, respectively.

NASA astronauts Barry “Butch” Wilmore and Sunita "Suni" Williams visit the Commercial Crew and Cargo Processing Facility at Kennedy Space Center in Florida on Dec. 17, 2020. The astronauts are at Kennedy to prepare for their flights to the International Space Station on Boeing’s CST-100 Starliner, as part of the agency’s Commercial Crew Program. Wilmore and Williams will command the Crew Flight Test and the Starliner-1 mission, respectively.

Expedition 72 NASA astronauts Suni Williams, left, Don Pettit, Butch Wilmore, and Nick Hague, are seen as acting NASA Administrator Sean Duffy delivers remarks during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

From left, NASA astronaut Suni Williams, Boeing Crew Flight Test (CFT) pilot, and Mike Fincke, CFT backup spacecraft test pilot, do a fist bump during a crew validation test inside the Astronaut Crew Quarters at NASA’s Kennedy Space Center in Florida on Oct. 18, 2022. Williams and Fincke, along with Barry “Butch” Wilmore, CFT commander, with assistance from the Boeing team, successfully completed the validation test during which they suited up and tested out the pressurized crew module to ensure seat fit, suit functionality, cabin temperature, audio system, and day of launch operations. Boeing’s CFT is scheduled to launch in April 2023.

From left, NASA astronauts Suni Williams and Barry “Butch” Wilmore, Boeing Crew Flight Test (CFT) pilot and commander, respectively, check their spacesuits during a crew validation test inside the Astronaut Crew Quarters at NASA’s Kennedy Space Center in Florida on Oct. 18, 2022. Williams and Wilmore, along with Mike Fincke, CFT backup spacecraft test pilot, with assistance from the Boeing team, successfully completed the validation test during which they suited up and tested out the pressurized crew module to ensure seat fit, suit functionality, cabin temperature, audio system, and day of launch operations. Boeing’s CFT is scheduled to launch in April 2023.

Commercial Crew Astronauts Bob Behnken , Eric Boe, Doug Hurley, and Suni Williams survey SpaceX's progress at Launch Complex 39 A. The survey helped ensure the was familiar with the launch complex and recovery ship prior to missions to station.

On behalf of the Expedition 72 crew NASA astronaut Suni Williams presents Iztok Mirošič, Ambassador of the Republic of Slovenia to the United States to the United States, with a montage including flags of the United States and Slovenia that have been flown in space before participating in a panel discussion at the Embassy of Slovenia, Wednesday, Sept. 17, 2025, in Washington. Williams, Don Pettit, Nick Hague, and Butch Wilmore served as part of Expedition 72 onboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 72 NASA astronauts Don Pettit, left, Suni Williams, Nick Hague, Butch Wilmore, and Ken Bowersox, associate administrator for NASA's Space Operations Mission Directorate, speak with Iztok Mirošič, Ambassador of the Republic of Slovenia to the United States, center, prior to a panel discussion at the Embassy of Slovenia, Wednesday, Sept. 17, 2025, in Washington. Hague, Wilmore, Williams, and Pettit served as part of Expedition 72 onboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 72 NASA astronauts Butch Wilmore, left, Nick Hague, Suni Williams, and Don Pettit pose for a picture with Iztok Mirošič , Ambassador of the Republic of Slovenia to the United States, center, prior to a panel discussion at the Embassy of Slovenia, Wednesday, Sept. 17, 2025, in Washington. Hague, Wilmore, Williams, and Pettit served as part of Expedition 72 onboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 72 NASA astronauts Nick Hague, left, Don Pettit, Suni Williams, and Butch Wilmore speak with Iztok Mirošič, Ambassador of the Republic of Slovenia to the United States, center, prior to a panel discussion at the Embassy of Slovenia, Wednesday, Sept. 17, 2025, in Washington. Hague, Wilmore, Williams, and Pettit served as part of Expedition 72 onboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

From left, NASA astronauts Barry “Butch” Wilmore and Suni Williams, Boeing Crew Flight Test (CFT) commander and pilot, speak with VIPs while watching Boeing’s Starliner spacecraft atop the United Launch Alliance Atlas V rocket is seen on the launch pad of Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida on Saturday, May 4, 2024, ahead of NASA’s Boeing Crew Flight Test. As part of the agency’s Commercial Crew Program, NASA astronauts Butch Wilmore and Suni Williams are the first to launch to the International Space Station aboard Boeing’s Starliner spacecraft. Liftoff is scheduled for 10:34 p.m. ET Monday, May 6.