Members of NASA’s SpaceX Crew-9 mission will spend the next two weeks in routine preflight quarantine at the agency’s Johnson Space Center in Houston ahead of their mission to the International Space Station.
NASA and SpaceX have shifted the Crew-9 launch to no earlier than Wednesday, Sept. 25, to complete prelaunch preparations and ensure separation between operations. Liftoff is targeted for 2:28 p.m. EDT from Space Launch Complex-40 at Cape Canaveral Space Force Station in Florida aboard a SpaceX Falcon 9 rocket and Dragon spacecraft named Freedom. This is the first time a human spaceflight mission will launch from the pad. Additional launch opportunities are available on Thursday, Sept. 26, Friday, Sept. 27, and Saturday, Sept. 28.
NASA astronaut Nick Hague, commander, and Roscosmos cosmonaut Aleksandr Gorbunov, mission specialist, will remain in isolation to prevent exposure to any illnesses before they join the Expedition 72 crew at the space station. As part of the Crew-9 crew, Hague and Gorbunov will join NASA astronauts Butch Wilmore and Suni Williams, who arrived to the space station in June.
Hague and Gorbunov are set to arrive at NASA’s Kennedy Space Center in Florida on Friday, Sept. 20, where the pair will remain in quarantine at the Neil A. Armstrong Operations and Checkout Building until launch.
Crew-9 is the ninth crew rotation mission with SpaceX to the space station under NASA’s Commercial Crew Program. The crew will spend approximately five months at the orbiting laboratory conducting spacewalks, research demonstrations, and experiments before returning in February 2025.
Engineering teams with NASA and Boeing completed a hot fire test of the Starliner spacecraft’s reaction control system jets on July 27 to evaluate the spacecraft’s propulsion system. NASA astronauts Butch Wilmore and Suni Williams, assigned to the agency’s Boeing Crew Flight Test, were seated inside the docked spacecraft during the test as part of preparations before their return aboard Starliner from the International Space Station.
The test involved firing 27 of the spacecraft’s 28 jets for short bursts, moving through them one at a time to check thruster performance and helium leak rates. Preliminary results show all the tested thrusters are back to preflight levels based on thrust and chamber pressure.
As part of the test configuration, all helium manifolds, which control and direct the flow of helium, were opened allowing engineers to continue evaluation of Starliner’s helium supply and leak rates. The teams verified Starliner continues to show the margin needed to support a return trip from the station. Following the test, the helium manifolds were closed and will remain closed until Starliner activates its propulsion system ahead of undocking. Teams also will verify the helium leak rate before Starliner undocks.
Teams are reviewing data from the docked hot fire test and the recent ground testing of a Starliner thruster at NASA’s White Sands Test Facility in New Mexico before holding an agency return readiness review. Following this agency-level review, NASA and Boeing will select a target return date.
While ground teams work to finalize Starliner’s return to Earth, Wilmore and Williams continue to work alongside the Expedition 71 crew, assisting with science investigations and maintenance activities. On July 29, Wilmore and Williams entered their spacecraft and checked its water systems, called down to Boeing mission personnel for a conference, and put on their space suits long enough to perform a pressure test. Wilmore started his morning in the Harmony module, assembling the BioServe centrifuge as Williams reviewed procedures for operating the Astrobee free-flying robotic assistants.
Astronauts Butch Wilmore and Suni Williams, crewmembers of NASA’s Boeing Crew Flight Test mission, performed a host of research activities and other roles aboard the International Space Station. Wilmore and Williams give the microgravity laboratory a complement of nine people working through daily tasks.
On Monday, Wilmore and Williams reviewed the procedures for using the Fluid Systems Servicer, which drains, purges, and circulates fluids on systems aboard the space station. Wilmore then refilled coolant loops in the water pump assembly located in the Columbus module. Tuesday saw the pair take turns during the morning pedaling on an exercise cycle while attached to heart and breathing sensors that measured their aerobic capacity. The duo then split up as Wilmore serviced a pair of research freezers that preserve scientific samples and Williams installed hardware on an experiment that explores atmospheric reentry and thermal protection systems.
The seven-member Expedition 71 crew joined the two Boeing Crew Flight Test astronauts to practice an emergency drill in collaboration with mission controllers. The teams aboard the orbital outpost and on the ground coordinated communications and reviewed procedures in the unlikely event of a pressure leak, chemical leak, or fire aboard the space station. Following that, Wilmore and Williams spoke to reporters from the space station, answering questions about their mission and the Starliner vehicle. NASA and Boeing managers also discussed the Crew Flight Test mission with the media in an audio teleconference afterward. Watch the crew news conference here and listen to the media briefing here. The duo also completed life support work refilling temperature loops with water in the Tranquility module’s internal thermal control system.
Advanced biology research also was underway aboard the orbiting lab on Thursday with astronauts exploring how living in space affects the human body and mind. Williams extracted DNA to identify microbe samples collected from station water systems. Results from the genetic biotechnology experiment may improve ways to keep crews healthy and spacecraft systems clean on future missions.
NASA astronaut Michael Barratt also assisted Wilmore, who spent all day servicing a pair of spacesuits in the Quest airlock. The duo cleaned the suits’ cooling loops and checked the communication systems ahead of a spacewalk planned for July 29.
Teams from NASA and Boeing now are targeting no earlier than 10:10 p.m. EDT Tuesday, June 25, for the undocking of the Starliner spacecraft from the International Space Station. For the primary undocking opportunity, NASA astronauts Butch Wilmore and Suni Williams, the first crew to fly aboard Starliner, would land about 4:51 a.m. on Wednesday, June 26, at White Sands Space Harbor in New Mexico.
Mission teams supporting NASA’s Boeing Crew Flight Test continue to review Starliner’s data from the completed test objectives.
During a media teleconference on Tuesday, Steve Stich, manager of NASA’s Commercial Crew Program, discussed the flight test and upcoming return plans. Stich was joined by Dana Weigel, manager of NASA’s International Space Station Program; Mike Lammers, flight director at NASA’s Johnson Space Center in Houston; and Mark Nappi, vice president and manager of Boeing’s Commercial Crew Program. Listen to a full replay of the teleconference.
Following undocking and the deorbit burn, Starliner will descend under parachutes to land in the desert grounds of White Sands. Airbags attached to the bottom of Starliner will soften the spacecraft’s touchdown. The landing will mark the first time an American capsule has touched down on land with astronauts aboard. A team of NASA and Boeing specialists will retrieve the crew soon after landing.
Wilmore and Williams docked the Starliner spacecraft to the space station’s forward port on June 6 and have been testing spacecraft systems and performing tasks aboard the orbiting laboratory.
Get the latest mission updates by following the commercial crew blog, @commercial_crew on X, and commercial crew on Facebook.
NASA and Boeing now are targeting no earlier than Saturday, June 22, to return the agency’s Boeing Crew Flight Test mission from the International Space Station. The extra time allows the team to finalize departure planning and operations while the spacecraft remains cleared for crew emergency return scenarios within the flight rules.
NASA and Boeing leadership will discuss the details of the new return target, flight status, and weather considerations for landing during a pre-departure media teleconference at 12 p.m. EDT Tuesday, June 18. NASA will provide additional media teleconference details soon.
“We are continuing to understand the capabilities of Starliner to prepare for the long-term goal of having it perform a six-month docked mission at the space station,” said Steve Stich, manager of NASA’s Commercial Crew Program. “The crew will perform additional hatch operations to better understand its handling, repeat some ‘safe haven’ testing and assess piloting using the forward window.”
NASA and Boeing teams also prepared plans for Starliner to fire seven of its eight aft-facing thrusters while docked to the station to evaluate thruster performance for the remainder of the mission. Known as a “hot fire test,” the process will see two bursts of the thrusters, totaling about a second, as part of a pathfinder process to evaluate how the spacecraft will perform during future operational missions after being docked to the space station for six months. The crew also will investigate cabin air temperature readings across the cabin to correlate to the life support system temperature measurements.
“We have an incredible opportunity to spend more time at station and perform more tests which provides invaluable data unique to our position,” said Mark Nappi, vice president and program manager, Commercial Crew Program, Boeing. “As the integrated NASA and Boeing teams have said each step of the way, we have plenty of margin and time on station to maximize the opportunity for all partners to learn – including our crew.”
NASA astronauts Butch Wilmore and Suni Williams, who are serving as Starliner’s crew for the mission, arrived at the International Space Station on June 6. They’ve completed numerous flight objectives required for NASA certification of Boeing’s transportation system for flights to the orbiting laboratory under the agency’s Commercial Crew Program.
Over the past three days, Wilmore and Williams have performed tasks as part of the space station team, including installing research equipment, maintaining the lab’s hardware, and helping station crewmembers Matt Dominick and Tracy Dyson prepare for a spacewalk. After NASA called off Thursday’s spacewalk, Williams worked to help the crew out of their spacesuits.
Engineering teams continue to increase their understanding of previous observations from Starliner propulsion systems on the spacecraft’s service module.
Pending spacecraft return readiness and acceptable weather conditions, Starliner will undock from the space station for a parachute and airbag-assisted landing in the southwestern United States. Get the latest mission updates by following the commercial crew blog, @commercial_crew on X, and commercial crew on Facebook.
Orbiting Earth as part of the nine-person crew of the International Space Station, NASA astronauts Butch Wilmore and Suni Williams continue testing Boeing’s Starliner spacecraft as part of its first flight with astronauts. The testing is part of the data collection on the Starliner system for certification by NASA for regular crewed mission to the orbital complex.
As part of NASA’s Boeing Crew Flight Test, Wilmore and Williams, along with teams on the ground, are stepping through numerous flight objectives following arrival of Starliner to the space station on June 6, including:
Powering the spacecraft down into a minimal power mode, which it will enter during operational missions while the crew works aboard station, and then powering it up again;
Conducting “safe haven” checks to show the spacecraft can support a crew with its own air and consumables during in an emergency on the station;
Performing a habitability study, along with astronauts Tracy Dyson and Matthew Dominick, to evaluate seating positions and other factors, such as air circulation for a four-person crew;
Evaluating spacesuit and seat-fits, as well as checkouts of the service module’s batteries.
Meanwhile, ground teams continue to assess and monitor Starliner’s performance and planning for return of the mission no earlier than Tuesday, June 18, pending weather and spacecraft readiness. Starliner is cleared for crew emergency return scenarios from space station, if needed, in accordance with the flight rules.
While Starliner remains docked to station, ground teams are continuing to evaluate propulsion system in-flight observations.
“Butch and Suni are doing great aboard station as ground teams continue digging into the details of Starliner’s on-orbit, rendezvous, and docked performance,” said Steve Stich, manager, NASA’s Commercial Crew Program. “We expected to do a lot of valuable learning on this test flight, and I am extremely proud of how the NASA and Boeing teams are working together to ensure we can safely execute the return portion of the mission.”
One of Starliner’s aft-facing reaction control system (RCS) thrusters, capable of about 85 pounds of thrust, remains de-selected as teams continue to evaluate its performance. Ground teams plan to fire all 28 RCS thrusters after undocking to collect additional data signatures on the service module thrusters before the hardware is expended. As part of normal operations, the service module separates from crew module on return, so NASA and Boeing will gather as much data as possible to aid in system assessments.
Teams currently are assessing what impacts, if any, five small leaks in the service module helium manifolds would have on the remainder of the mission. Engineers evaluated the helium supply based on current leak rates and determined that Starliner has plenty of margin to support the return trip from station. Only seven hours of free-flight time is needed to perform a normal end of mission, and Starliner currently has enough helium left in its tanks to support 70 hours of free flight activity following undocking. While Starliner is docked, all the manifolds are closed per normal mission operations preventing helium loss from the tanks.
Engineers also are evaluating an RCS oxidizer isolation valve in the service module that is not properly closed. Ground teams performed a successful propulsion system valve checkout on Sunday. All other oxidizer and fuel valves within the service module were cycled normally. The suspect oxidizer isolation valve was not cycled in the recent checkout. It will remain commanded closed for the remainder of the mission while ground teams continue to evaluate its data signatures. The crew module propulsion valves, which are part of an independent system that steers the capsule in the last phase of flight before landing, also were successfully cycled, and all those valves are performing as designed.
Mission managers are continuing to work through the return plan, which includes assessments of flight rationale, fault tolerance, and potential operational mitigations for the remainder of the flight. NASA and Boeing will hold a pre-departure media teleconference to provide additional updates before Starliner undocks from station.
With launch and docking already completed, the last remaining dynamic phase of the mission will come at the end of the flight test when Starliner will undock from the orbiting laboratory and then adjust its orbit to move away from the space station. The spacecraft, with Wilmore and Williams aboard, will perform a deorbit burn before entering the atmosphere and landing in the southwestern United States under parachutes and landing airbags to complete the flight.
As part of the agency’s Commercial Crew Program, the mission is the first crewed flight for the Starliner spacecraft. Learn more about the mission by following the commercial crew blog, @commercial_crew on X, and commercial crew on Facebook.
NASA’s arrival coverage of Boeing’s Starliner spacecraft to the International Space Station is now underway on NASA+, NASA Television, the NASA app, YouTube, and the agency’s website. Docking is scheduled at approximately 12:15 p.m. EDT Thursday, June 6.
NASA astronauts Butch Wilmore and Suni Williams launched safely on the Starliner spacecraft on a United Launch Alliance Atlas V rocket at 10:52 a.m. June 5 from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida.
The Starliner crew continues to make their way to the space station. During flight, Wilmore and Williams successfully performed manual piloting demonstrations of Starliner and completed a sleep period. Prior to crew sleep, mission teams identified three helium leaks in the spacecraft. One of these was previously discussed before flight along with a management plan, and the other two are new since the spacecraft arrived in orbit. To monitor and manage these leaks, the three helium manifolds were isolated. Those manifolds have all been reopened prior to a Starliner height adjust burn, called NHPC. All affected manifolds will remain open for rendezvous and docking operations.
Following in-flight reviews of the mission and helium leaks, the Starliner and International Space Station mission management teams are “go” to proceed with space station arrival. The flight control team will continue to monitor the leak rates in Starliner’s propulsion system. After docking, all of Starliner manifolds will be closed per normal plans. All other Starliner systems are functioning normally.
NASA’s arrival and in-flight event coverage is as follows (all times Eastern and subject to change based on real-time operations):
12:15 p.m. – Targeted docking
2 p.m. – Hatch opening
2:20 p.m. – Welcome remarks
3:30 p.m. – Post-docking news conference at NASA Johnson with the following participants:
NASA Associate Administrator Jim Free
Steve Stich, manager, NASA’s Commercial Crew Program
Jeff Arend, manager for systems engineering and integration, NASA’s International Space Station Office
Mark Nappi, vice president and program manager, Commercial Crew Program, Boeing
Coverage of the post-docking news conference will air live on NASA+, NASA Television, the NASA app, YouTube, and the agency’s website.
To attend the post-docking briefing, U.S. media must contact the NASA Johnson newsroom at: jsccommu@mail.nasa.gov or 281-483-5111 by 1 p.m. June 6. To join by phone, media must contact the NASA Johnson newsroom by 3 p.m. June 6.
5:50 p.m. – NASA Administrator Bill Nelson, Deputy Administrator Pam Melroy, Associate Administrator Jim Free, Associate Administrator for Space Operations Ken Bowersox, and Johnson Space Center Director Vanessa Wyche will speak with Wilmore and Williams about their launch aboard the Starliner spacecraft.
Coverage of the Earth to space call will air live on NASA+, NASA Television, the NASA app, YouTube, and the agency’s website.
NASA’s Boeing Crew Flight Test astronauts are on their way to the International Space Station!
The capsule, carrying NASA astronauts Butch Wilmore, commander, and Suni Williams, pilot, is expected to reach the orbiting laboratory at 12:15 p.m. EDT, Thursday, June 6.
A postlaunch news conference will be held at the agency’s Kennedy Space Center in Florida and is scheduled to begin at 12:30 p.m. with the following participants:
NASA Administrator Bill Nelson
Ken Bowersox, associate administrator, NASA’s Space Operations Mission Directorate
Joel Montalbano, deputy associate administrator, NASA’s Space Operations Mission Directorate
Steve Stich, manager, NASA’s Commercial Crew Program
Mark Nappi, vice president and program manager, Commercial Crew Program, Boeing
Tory Bruno, president and CEO, ULA
Coverage of the postlaunch news conference will air live on NASA+, the NASA app, YouTube, and the agency’s website.
Once the postlaunch news conference is complete, NASA+ coverage will end, and mission coverage will continue on both NASA channels. NASA+ coverage will resume at 9:30 a.m. Thursday, June 6, as Starliner approaches the space station for a docking to the forward-facing port of the Harmony module.
The United Launch Alliance Atlas V rocket booster has separated from the Centaur upper stage carrying Boeing’s Starliner spacecraft. The Centaur will continue to help propel Boeing’s Starliner to a suborbit before the spacecraft boosts itself to orbit, bringing it closer to the International Space Station.
Measuring 10 feet in diameter and 41.5 feet in length, the Centaur upper stage uses liquid hydrogen and liquid oxygen to power its twin Aerojet Rocketdyne RL10A-4-2 engines. The burn of the Centaur’s dual engines is expected to last a little more than seven minutes before engine cutoff and separation from Starliner. Following separation, the crew capsule carrying NASA astronauts Butch Wilmore and Suni Williams will be on its own for the remainder of the journey to the space station.
Following its separation, the Atlas Centaur will land in the ocean near Australia.
NASA Television will provide continuous coverage leading up to docking at the space station and through hatch opening and welcome remarks.
A United Launch Alliance Atlas V rocket carrying Boeing’s Starliner capsule with NASA astronauts Butch Wilmore and Suni Williams has reached Max Q. The milestone is the moment of peak aerodynamic pressure on the rocket.
Following Max Q will be Atlas V booster engine cutoff and separation.