NASA’s Boeing Crew Flight Test crew members Suni Williams, left, and Butch Wilmore are seen aboard the International Space Station on a monitor during an Earth-to-space call with NASA Administrator Bill Nelson, NASA Deputy Administrator Pam Melroy, NASA Associate Administrator Jim Free, and Johnson Space Center Director Vanessa Wyche, Monday, June 10, 2024 at the Mary W. Jackson NASA Headquarters building in Washington. Nelson, Melroy, Free, and Wyche spoke to Wilmore and Williams about their mission aboard Boeing’s Starliner Spacecraft. Photo Credit: (NASA/Joel Kowsky)

NASA Associate Administrator Jim Free is seen during an Earth-to-space call with the agency’s Boeing Crew Flight Test crew members Butch Wilmore and Suni Williams aboard the International Space Station, Monday, June 10, 2024 at the Mary W. Jackson NASA Headquarters building in Washington. Free, NASA Administrator Bill Nelson, NASA Deputy Administrator Pam Melroy, and Johnson Space Center Director Vanessa Wyche spoke to Wilmore and Williams about their mission aboard Boeing’s Starliner Spacecraft. Photo Credit: (NASA/Joel Kowsky)

NASA Deputy Administrator Pam Melroy is seen during an Earth-to-space call with the agency’s Boeing Crew Flight Test crew members Butch Wilmore and Suni Williams aboard the International Space Station, Monday, June 10, 2024 at the Mary W. Jackson NASA Headquarters building in Washington. Melroy, NASA Administrator Bill Nelson, NASA Associate Administrator Jim Free, and Johnson Space Center Director Vanessa Wyche spoke to Wilmore and Williams about their mission aboard Boeing’s Starliner Spacecraft. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Bill Nelson is seen during an Earth-to-space call with the agency’s Boeing Crew Flight Test crew members Butch Wilmore and Suni Williams aboard the International Space Station, Monday, June 10, 2024 at the Mary W. Jackson NASA Headquarters building in Washington. Nelson, NASA Deputy Administrator Pam Melroy, NASA Associate Administrator Jim Free, and Johnson Space Center Director Vanessa Wyche spoke to Wilmore and Williams about their mission aboard Boeing’s Starliner Spacecraft. Photo Credit: (NASA/Joel Kowsky)

Chirag Parikh, Deputy Assistant to the President and Executive Secretary of the National Space Council, is seen during an Earth-to-space call with NASA’s Boeing Crew Flight Test crew members Butch Wilmore and Suni Williams aboard the International Space Station, Monday, June 10, 2024 at the Eisenhower Executive Office Building in Washington. Parikh spoke to Wilmore and Williams about their mission aboard Boeing’s Starliner Spacecraft. Photo Credit: (NASA/Bill Ingalls)

Kota Mizutani, Senior Advisor at the White House office of Public Engagement, is seen kicking off an Earth-to-space call between Chirag Parikh, Deputy Assistant to the President and Executive Secretary of the National Space Council, and NASA’s Boeing Crew Flight Test crew members Butch Wilmore and Suni Williams aboard the International Space Station, Monday, June 10, 2024 at the Eisenhower Executive Office Building in Washington. Parikh spoke to Wilmore and Williams about their mission aboard Boeing’s Starliner Spacecraft. Photo Credit: (NASA/Bill Ingalls)

Daniel Evans, NASA's Director of Civil Space Policy standing left, looks on as NASA’s Boeing Crew Flight Test crew members Suni Williams, left, and Butch Wilmore are seen aboard the International Space Station on a monitor during an Earth-to-space call with Chirag Parikh, Deputy Assistant to the President and Executive Secretary of the National Space Council, Monday, June 10, 2024 at the Eisenhower Executive Office Building in Washington. Parikh spoke to Williams and Wilmore about their mission aboard Boeing’s Starliner Spacecraft. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Bill Nelson, left, NASA Deputy Administrator Pam Melroy, and NASA Associate Administrator Jim Free are seen during an Earth-to-space call with the agency’s Boeing Crew Flight Test crew members Butch Wilmore and Suni Williams aboard the International Space Station, Monday, June 10, 2024 at the Mary W. Jackson NASA Headquarters building in Washington. Nelson, Melroy, Free, and Johnson Space Center Director Vanessa Wyche spoke to Wilmore and Williams about their mission aboard Boeing’s Starliner Spacecraft. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Bill Nelson, left, NASA Deputy Administrator Pam Melroy, and NASA Associate Administrator Jim Free are seen during an Earth-to-space call with the agency’s Boeing Crew Flight Test crew members Butch Wilmore and Suni Williams aboard the International Space Station, Monday, June 10, 2024 at the Mary W. Jackson NASA Headquarters building in Washington. Nelson, Melroy, Free, and Johnson Space Center Director Vanessa Wyche spoke to Wilmore and Williams about their mission aboard Boeing’s Starliner Spacecraft. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Bill Nelson, left, NASA Deputy Administrator Pam Melroy, and NASA Associate Administrator Jim Free are seen during an Earth-to-space call with the agency’s Boeing Crew Flight Test crew members Butch Wilmore and Suni Williams aboard the International Space Station, Monday, June 10, 2024 at the Mary W. Jackson NASA Headquarters building in Washington. Nelson, Melroy, Free, and Johnson Space Center Director Vanessa Wyche spoke to Wilmore and Williams about their mission aboard Boeing’s Starliner Spacecraft. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Bill Nelson, left, NASA Deputy Administrator Pam Melroy, and NASA Associate Administrator Jim Free are seen during an Earth-to-space call with the agency’s Boeing Crew Flight Test crew members Butch Wilmore and Suni Williams aboard the International Space Station, Monday, June 10, 2024 at the Mary W. Jackson NASA Headquarters building in Washington. Nelson, Melroy, Free, and Johnson Space Center Director Vanessa Wyche spoke to Wilmore and Williams about their mission aboard Boeing’s Starliner Spacecraft. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Mike Hopkins will team with NASA astronaut Victor Glover on SpaceX’s first operational mission to the International Space Station onboard the company’s Crew Dragon spacecraft. They joined fellow commercial crew astronauts Bob Behnken, Eric Boe, Josh Cassada, Chris Ferguson, Nicole Mann, Doug Hurley and Suni Williams for a celebration at Johnson Space Center in Houston on Aug. 3, 2018. Mann, Boe and Ferguson will fly onboard Boeing’s CST-100 Starliner in the company’s Crew Flight Test to the space station, while Cassada and Williams will fly on Starliner’s first operational mission to station. Behnken and Hurley are assigned to SpaceX’s Demo-2 flight test to the space station onboard Crew Dragon.

EDWARDS AFB, Calif. - ED13-0300-003 – An Erickson Air-Crane helicopter lifts Sierra Nevada Corporation's Dream Chaser flight vehicle during a captive-carry flight test. The test was a rehearsal for free flights at Edwards later this year. The spacecraft is under development in partnership with NASA's Commercial Crew Program. Although the spacecraft is designed for crew members, the vehicle will not have anyone onboard during the free flights. Photo credit: NASA/Carla Thomas

EDWARDS AFB, Calif. - ED13-0300-001 – An Erickson Air-Crane helicopter lifts Sierra Nevada Corporation's Dream Chaser flight vehicle during a captive-carry flight test. The test was a rehearsal for free flights at Edwards later this year. The spacecraft is under development in partnership with NASA's Commercial Crew Program. Although the spacecraft is designed for crew members, the vehicle will not have anyone onboard during the free flights. Photo credit: NASA/Carla Thomas

EDWARDS AFB, Calif. - ED13-0300-002 – An Erickson Air-Crane helicopter lifts Sierra Nevada Corporation's Dream Chaser flight vehicle during a captive-carry flight test. The test was a rehearsal for free flights at Edwards later this year. The spacecraft is under development in partnership with NASA's Commercial Crew Program. Although the spacecraft is designed for crew members, the vehicle will not have anyone onboard during the free flights. Photo credit: NASA/Carla Thomas

NASA astronauts Nicole Mann, left, and Michael Fincke take a selfie as a United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rollout out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test mission, Wednesday, Dec. 18, 2019 at Cape Canaveral Air Force Station in Florida. Mann, Fincke, and Boeing astronaut Chris Ferguson are assigned to fly onboard Starliner for the Crew Flight Test. The uncrewed Orbital Flight Test will be Starliner’s maiden mission to the International Space Station for NASA's Commercial Crew Program. The mission, currently targeted for a 6:26 a.m. EST launch on Dec. 20, will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

The SpaceX Crew Dragon Endeavour spacecraft is seen as it lands with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

Support teams arrive at the SpaceX Crew Dragon Endeavour spacecraft shortly after it landed with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

The SpaceX Crew Dragon Endeavour spacecraft is seen as it lands with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

Support teams arrive at the SpaceX Crew Dragon Endeavour spacecraft shortly after it landed with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

Support teams arrive at the SpaceX Crew Dragon Endeavour spacecraft shortly after it landed with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

The SpaceX Crew Dragon Endeavour spacecraft is seen as it lands with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

Support teams arrive at the SpaceX Crew Dragon Endeavour spacecraft shortly after it landed with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

The SpaceX Crew Dragon Endeavour spacecraft is seen as it lands with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

Support teams arrive at the SpaceX Crew Dragon Endeavour spacecraft shortly after it landed with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

The SpaceX Crew Dragon Endeavour spacecraft is seen as it lands with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

The SpaceX Crew Dragon Endeavour spacecraft is seen as it lands with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

The SpaceX Crew Dragon Endeavour spacecraft is seen as it lands with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

On Monday, March 30, 2020 at a SpaceX processing facility on Cape Canaveral Air Force Station in Florida, SpaceX successfully completed a fully integrated test of critical crew flight hardware ahead of Crew Dragon’s second demonstration mission to the International Space Station for NASA's Commercial Crew Program; the first flight test with astronauts onboard the spacecraft. NASA astronauts Bob Behnken and Doug Hurley participated in the test, which included flight suit leak checks, spacecraft sound verification, display panel and cargo bin inspections, seat hardware rotations, and more.

On Monday, March 30, 2020 at a SpaceX processing facility on Cape Canaveral Air Force Station in Florida, SpaceX successfully completed a fully integrated test of critical crew flight hardware ahead of Crew Dragon’s second demonstration mission to the International Space Station for NASA's Commercial Crew Program; the first flight test with astronauts onboard the spacecraft. NASA astronauts Bob Behnken and Doug Hurley participated in the test, which included flight suit leak checks, spacecraft sound verification, display panel and cargo bin inspections, seat hardware rotations, and more.

On Monday, March 30, 2020 at a SpaceX processing facility on Cape Canaveral Air Force Station in Florida, SpaceX successfully completed a fully integrated test of critical crew flight hardware ahead of Crew Dragon’s second demonstration mission to the International Space Station for NASA's Commercial Crew Program; the first flight test with astronauts onboard the spacecraft. NASA astronauts Bob Behnken and Doug Hurley participated in the test, which included flight suit leak checks, spacecraft sound verification, display panel and cargo bin inspections, seat hardware rotations, and more.

On Monday, March 30, 2020 at a SpaceX processing facility on Cape Canaveral Air Force Station in Florida, SpaceX successfully completed a fully integrated test of critical crew flight hardware ahead of Crew Dragon’s second demonstration mission to the International Space Station for NASA's Commercial Crew Program; the first flight test with astronauts onboard the spacecraft. NASA astronauts Bob Behnken and Doug Hurley participated in the test, which included flight suit leak checks, spacecraft sound verification, display panel and cargo bin inspections, seat hardware rotations, and more.

On Monday, March 30, 2020 at a SpaceX processing facility on Cape Canaveral Air Force Station in Florida, SpaceX successfully completed a fully integrated test of critical crew flight hardware ahead of Crew Dragon’s second demonstration mission to the International Space Station for NASA's Commercial Crew Program; the first flight test with astronauts onboard the spacecraft. NASA astronauts Bob Behnken and Doug Hurley participated in the test, which included flight suit leak checks, spacecraft sound verification, display panel and cargo bin inspections, seat hardware rotations, and more.

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen on the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen on the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen on the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen on the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

Boeing Defense, Space and Security President and CEO Leanne Caret receives an American flag from NASA Administrator Jim Bridenstine during a NASA event announcing the astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. The flag is to be flown to the International Space Station onboard the test flight of Starliner and retrieved later during the first mission of the Starliner. Photo Credit: (NASA/Bill Ingalls)

NASA and SpaceX support teams onboard the SpaceX GO Navigator recovery ship prepare for the landing of the SpaceX Crew Dragon Endeavour spacecraft with NASA astronauts Robert Behnken and Douglas Hurley onboard, Sunday, Aug. 2, 2020 in the Gulf of Mexico off the cost of Pensacola, Florida. The Demo-2 test flight for NASA's Commercial Crew Program is the first to deliver astronauts to the International Space Station and return them to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley are returning after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

SpaceX support teams onboard the SpaceX GO Navigator recovery ship deploy one of the fast boats ahead of the landing of the SpaceX Crew Dragon Endeavour spacecraft with NASA astronauts Robert Behnken and Douglas Hurley onboard, Sunday, Aug. 2, 2020 in the Gulf of Mexico off the cost of Pensacola, Florida. The Demo-2 test flight for NASA's Commercial Crew Program is the first to deliver astronauts to the International Space Station and return them to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley are returning after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

NASA and SpaceX support teams onboard the SpaceX GO Navigator recovery ship prepare for the landing of the SpaceX Crew Dragon Endeavour spacecraft with NASA astronauts Robert Behnken and Douglas Hurley onboard, Sunday, Aug. 2, 2020 in the Gulf of Mexico off the cost of Pensacola, Florida. The Demo-2 test flight for NASA's Commercial Crew Program is the first to deliver astronauts to the International Space Station and return them to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley are returning after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

NASA and SpaceX support teams onboard the SpaceX GO Navigator recovery ship prepare for the landing of the SpaceX Crew Dragon Endeavour spacecraft with NASA astronauts Robert Behnken and Douglas Hurley onboard, Sunday, Aug. 2, 2020 in the Gulf of Mexico off the cost of Pensacola, Florida. The Demo-2 test flight for NASA's Commercial Crew Program is the first to deliver astronauts to the International Space Station and return them to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley are returning after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

NASA and SpaceX support teams onboard the SpaceX GO Navigator recovery ship prepare for the landing of the SpaceX Crew Dragon Endeavour spacecraft with NASA astronauts Robert Behnken and Douglas Hurley onboard, Sunday, Aug. 2, 2020 in the Gulf of Mexico off the cost of Pensacola, Florida. The Demo-2 test flight for NASA's Commercial Crew Program is the first to deliver astronauts to the International Space Station and return them to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley are returning after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

NASA and SpaceX support teams onboard the SpaceX GO Navigator recovery ship prepare for the landing of the SpaceX Crew Dragon Endeavour spacecraft with NASA astronauts Robert Behnken and Douglas Hurley onboard, Sunday, Aug. 2, 2020 in the Gulf of Mexico off the cost of Pensacola, Florida. The Demo-2 test flight for NASA's Commercial Crew Program is the first to deliver astronauts to the International Space Station and return them to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley are returning after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken and Doug Hurley are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover, pictured, and Mike Hopkins will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken, at right, and Doug Hurley are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover, behind Behnken, and Mike Hopkins, at left, will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken and Doug Hurley, pictured at right, are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover, pictured at left, and Mike Hopkins will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken, at left, and Doug Hurley, at right, are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover and Mike Hopkins will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken, far right, and Doug Hurley are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover, behind Behnken, and Mike Hopkins, at left, will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken, and Doug Hurley, at left, are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover, and Mike Hopkins, at right, will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken, second from left, and Doug Hurley are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover, far right, and Mike Hopkins, at left, will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken, pictured, and Doug Hurley are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover and Mike Hopkins will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken and Doug Hurley are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover, pictured, and Mike Hopkins will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronaut Nicole Mann will team with commercial crew astronauts Eric Boe and Chris Ferguson onboard Boeing’s CST-100 Starliner in the company’s Crew Flight Test to the International Space Station. They joined fellow commercial crew astronauts Bob Behnken, Josh Cassada, Victor Glover, Mike Hopkins, Doug Hurley and Suni Williams for a celebration at Johnson Space Center in Houston on Aug, 3, 2018. Cassada and Williams will fly on Starliner’s first operational mission to the space station. Behnken and Hurley will fly on SpaceX’s Crew Dragon in the company’s Demo-2 flight test to the space station, while Glover and Hopkins are assigned to Crew Dragon’s first operational mission to station.

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken, at right, and Doug Hurley are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover, and Mike Hopkins, at left, will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken, center, and Doug Hurley are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover, far right, and Mike Hopkins, at left, will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken, and Doug Hurley, at left, are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover, and Mike Hopkins, at right, will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronauts who will be the first humans to fly aboard SpaceX's Crew Dragon spacecraft recently toured the company's Rocket Development Test Facility in McGregor, Texas, on Oct. 16, 2018. Astronauts Bob Behnken and Doug Hurley are set to crew SpaceX's Demo-2 flight test in June 2019, which will be the first flight of Crew Dragon with people onboard. Astronauts Victor Glover, at left, and Mike Hopkins, at right, will crew SpaceX's first regular mission to the International Space Station, following Demo-2 and NASA's certification of SpaceX commercial crew systems.

NASA astronaut Josh Cassada will team with NASA astronaut Suni Williams on Boeing’s first operational mission to the International Space Station onboard the company’s CST-100 Starliner spacecraft. They joined fellow commercial crew astronauts Eric Boe, Chris Ferguson, Nicole Mann, Bob Behnken, Victor Glover, Mike Hopkins and Doug Hurley for a celebration at Johnson Space Center in Houston on Aug. 3, 2018. Boe, Ferguson and Mann will fly on Starliner in Boeing’s Crew Flight Test to the space station. . Behnken and Hurley will fly on SpaceX’s Crew Dragon in the company’s Demo-2 flight test to the space station, while Glover and Hopkins are assigned to Crew Dragon’s first operational mission to station.

SpaceX President and Chief Operation Officer Gwynne Shotwell receives an American flag from NASA Administrator Jim Bridenstine during a NASA event announcing the astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. The flag is to be flown to the International Space Station onboard SpaceX’s Demo-2 crew flight test and retrieved later during the SpaceX Crew Dragon first mission to station. Photo Credit: (NASA/Bill Ingalls)

Chirag Parikh, Deputy Assistant to the President and Executive Secretary of the National Space Council, is seen during an Earth-to-space call with NASA’s Boeing Crew Flight Test crew members Butch Wilmore and Suni Williams aboard the International Space Station, Monday, June 10, 2024 at the Eisenhower Executive Office Building in Washington. Parikh spoke to Wilmore and Williams about their mission aboard Boeing’s Starliner Spacecraft. Photo Credit: (NASA/Bill Ingalls)

The SpaceX Crew Dragon Endeavour spacecraft, with NASA astronauts Robert Behnken and Douglas Hurley onboard, is positioned on the SpaceX GO Navigator recovery ship for crew egress shortly after landing in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Robert Behnken is greeted by NASA astronaut and Crew Recovery Chief Shane Kimbrough after egressing the SpaceX Crew Dragon Endeavour spacecraft onboard the SpaceX GO Navigator recovery ship after he and NASA astronaut Douglas Hurley landed in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

The SpaceX Crew Dragon Endeavour spacecraft, with NASA astronauts Robert Behnken and Douglas Hurley onboard, is positioned on the SpaceX GO Navigator recovery ship for crew egress shortly after landing in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. The mission will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. The mission, currently targeted for launch at 2:53 p.m. EDT Friday, July 30, will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. The mission will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. The mission, currently targeted for launch at 2:53 p.m. EDT Friday, July 30, will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen on the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. The mission, currently targeted for launch at 2:53 p.m. EDT Friday, July 30, will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. The mission, currently targeted for launch at 2:53 p.m. EDT Friday, July 30, will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen on the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission after being rolled out from the Vertical Integration Facility, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. The mission will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. The mission, currently targeted for launch at 2:53 p.m. EDT Friday, July 30, will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

In this black and white infrared image, a United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen on the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. The mission will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen on the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. The mission, currently targeted for launch at 2:53 p.m. EDT Friday, July 30, will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. The mission will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

NASA astronauts Nicole Mann, Michael Fincke, Suni Williams, Josh Cassada, and Eric Boe pose for a picture after a United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard was rollout out to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test mission, Wednesday, Dec. 18, 2019 at Cape Canaveral Air Force Station in Florida. Mann, Fincke, and Boeing Astronaut Chris Ferguson are assigned to fly on Starliner’s Crew Flight test, Williams and Cassada are assigned to the first operational mission of the spacecraft, and Boe is the assistant to the chief of the astronaut office for commercial crew. The uncrewed Orbital Flight Test will be Starliner’s maiden mission to the International Space Station for NASA's Commercial Crew Program. The mission, currently targeted for a 6:26 a.m. EST launch on Dec. 20, will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA's Commercial Crew Program. Photo Credit: (NASA/Aubrey Gemignani)

The SpaceX Crew Dragon Endeavour spacecraft is lifted onto the SpaceX GO Navigator recovery ship shortly after it landed with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Robert Behnken smiles prior to being helped out of the SpaceX Crew Dragon Endeavour spacecraft onboard the SpaceX GO Navigator recovery ship after he and NASA astronaut Douglas Hurley landed in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

SpaceX support teams are deployed on fast boats from the SpaceX GO Navigator recovery ship ahead of the landing of the SpaceX Crew Dragon Endeavour spacecraft with NASA astronauts Robert Behnken and Douglas Hurley onboard, Sunday, Aug. 2, 2020 in the Gulf of Mexico off the cost of Pensacola, Florida. The Demo-2 test flight for NASA's Commercial Crew Program is the first to deliver astronauts to the International Space Station and return them to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley are returning after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

Support teams and curious recreational boaters arrive at the SpaceX Crew Dragon Endeavour spacecraft shortly after it landed with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

SpaceX support teams are deployed on fast boats from the SpaceX GO Navigator recovery ship ahead of the landing of the SpaceX Crew Dragon Endeavour spacecraft with NASA astronauts Robert Behnken and Douglas Hurley onboard, Sunday, Aug. 2, 2020 in the Gulf of Mexico off the cost of Pensacola, Florida. The Demo-2 test flight for NASA's Commercial Crew Program is the first to deliver astronauts to the International Space Station and return them to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley are returning after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

SpaceX support teams are deployed on fast boats from the SpaceX GO Navigator recovery ship ahead of the landing of the SpaceX Crew Dragon Endeavour spacecraft with NASA astronauts Robert Behnken and Douglas Hurley onboard, Sunday, Aug. 2, 2020 in the Gulf of Mexico off the cost of Pensacola, Florida. The Demo-2 test flight for NASA's Commercial Crew Program is the first to deliver astronauts to the International Space Station and return them to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley are returning after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

SpaceX support teams are deployed on fast boats from the SpaceX GO Navigator recovery ship ahead of the landing of the SpaceX Crew Dragon Endeavour spacecraft with NASA astronauts Robert Behnken and Douglas Hurley onboard, Sunday, Aug. 2, 2020 in the Gulf of Mexico off the cost of Pensacola, Florida. The Demo-2 test flight for NASA's Commercial Crew Program is the first to deliver astronauts to the International Space Station and return them to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley are returning after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

NASA and SpaceX support teams meet prior to boarding the SpaceX GO Navigator recovery ship for the landing of the SpaceX Crew Dragon Endeavour spacecraft with NASA astronauts Robert Behnken and Douglas Hurley onboard, Sunday, Aug. 2, 2020 in the Gulf of Mexico off the cost of Pensacola, Florida. The Demo-2 test flight for NASA's Commercial Crew Program is the first to deliver astronauts to the International Space Station and return them to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley are returning after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

Support teams and curious recreational boaters arrive at the SpaceX Crew Dragon Endeavour spacecraft shortly after it landed with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

The SpaceX Crew Dragon Endeavour spacecraft is lifted onto the SpaceX GO Navigator recovery ship shortly after it landed with NASA astronauts Robert Behnken and Douglas Hurley onboard in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

Sunrise as seen from the SpaceX GO Navigator recovery ship as NASA and SpaceX support teams prepare for the landing of the SpaceX Crew Dragon Endeavour spacecraft with NASA astronauts Robert Behnken and Douglas Hurley onboard, Sunday, Aug. 2, 2020 in the Gulf of Mexico off the cost of Pensacola, Florida. The Demo-2 test flight for NASA's Commercial Crew Program is the first to deliver astronauts to the International Space Station and return them to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley are returning after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Robert Behnken gives a thumbs up after egressing the SpaceX Crew Dragon Endeavour spacecraft onboard the SpaceX GO Navigator recovery ship after he and NASA astronaut Douglas Hurley landed in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA's Commercial Crew Program was the first to deliver astronauts to the International Space Station and return them safely to Earth onboard a commercially built and operated spacecraft. Behnken and Hurley returned after spending 64 days in space. Photo Credit: (NASA/Bill Ingalls)