The uncrewed Boeing Starliner spacecraft is less than two minutes from landing on U.S. soil after spending three months at the International Space Station. Starliner is the first American-made orbital crew capsule designed to perform a ground landing as a reusable spacecraft.
The base heat shield separated from the spacecraft to allow the six airbags to inflate and brace for a ground landing. The three main parachutes are also slowing down the uncrewed capsule.
The airbags are filled with nitrogen to cushion Starliner’s landing at White Sands Space Harbor in New Mexico. The NASA and Boeing landing and recovery team is stationed at a holding zone near the landing site. After landing, technicians will use equipment to “sniff” the spacecraft for any lingering hypergolic fluids before approaching Starliner, opening the hatch, and unloading time-critical cargo. The spacecraft will then be transported to Boeing facilities at NASA’s Kennedy Space Center in Florida.
NASA’s coverage continues as Boeing’s uncrewed Starliner spacecraft reaches the final stages of landing.
Around 30,000 feet after atmospheric re-entry, the forward heat shield separated from the spacecraft and the drogue parachutes inflated to help slow down the uncrewed capsule.
About 45 seconds later, at around 8,000 feet, the drogue parachutes separated to make way for three larger main parachutes to deploy, slow down Starliner to 4 miles per hour, and allow an airbag-assisted landing.
Soon, the base heat shield will jettison to expose six airbags that will inflate to assist in a soft landing at White Sands Space Harbor in New Mexico in just a few minutes at 12 a.m. EDT, Saturday, Sept. 7.
Watch landing coverage on NASA+, the NASA app, and the agency’s website. Learn how to stream NASA programming through a variety of platforms including social media.
NASA’s coverage continues on NASA+, the NASA app, and YouTube, and the agency’s website as Boeing’s uncrewed Starliner spacecraft begins entry interface 400,000 feet above Earth.
As the hottest part of re-entry, the spacecraft’s heat shield will reach 3,000 degrees Fahrenheit as it enters the atmosphere.
Starliner is equipped with an ablative heat shield containing a layer of plastic resin that will heat up to gas and carry the heat away from the crew capsule through convection. This process helps keep the temperature inside the capsule around 70 degrees Fahrenheit. Similar heat shields were used on Mercury, Gemini, and Apollo spacecrafts.
The spacecraft is expected to land at approximately 12 a.m. Saturday, Sept. 7, at White Sands Space Harbor in New Mexico.
Learn how to stream NASA programming through a variety of platforms including social media.
At 11:18 p.m. EDT, Boeing’s uncrewed Starliner spacecraft completed its deorbit burn as expected over the Pacific Ocean. About two and a half minutes later, the spacecraft’s expendable service module separated. The service module provided propulsion and power leading up to the deorbit burn.
NASA’s coverage continues on NASA+, the NASA app, YouTube, and the agency’s website as teams prepare for landing.
The next milestone is in about 15 minutes with entry interface. Starliner will angle itself and its heat shield for re-entry as the spacecraft prepares for a parachute-and-airbag-assisted landing at approximately 12 a.m. Saturday, Sept. 7, at White Sands Space Harbor in New Mexico.
Starliner is the first American-made orbital crew capsule designed to perform a ground landing as a reusable spacecraft. NASA’s Spaceflight Meteorology Group forecasts a few clouds at 8,000 feet and winds out of 100 degrees around 6 knots, peaking to 8 knots, for tonight’s landing.
Learn how to stream NASA programming through a variety of platforms including social media.
NASA’s coverage is underway on NASA+, the NASA app, and YouTube, and the agency’s website as Boeing’s uncrewed Starliner spacecraft prepares for deorbit burn, entry, and landing.
Starliner autonomously undocked from the forward-facing port of the International Space Station’s Harmony module at 6:04 p.m. EDT, and mission managers gave a “go” for the spacecraft to proceed for a deorbit burn.
Starliner’s deorbit burn is expected at 11:17 p.m. EDT and involves the spacecraft firing its larger orbital maneuvering and attitude control thrusters, providing the power necessary to re-enter Earth’s atmosphere.
Learn how to stream NASA programming through a variety of platforms including social media.
At 6:04 p.m. EDT, Boeing’s uncrewed Starliner spacecraft undocked from the International Space Station. Starliner is headed for a deorbit burn at 11:17 p.m. and a targeted landing at 12 a.m. Saturday, Sept. 7, at White Sands Space Harbor in New Mexico.
NASA’s coverage will begin at 10:50 p.m. for deorbit burn, entry, and landing on NASA+, the NASA app, YouTube, and the agency’s website.
A pulsing sound from a speaker in Boeing’s Starliner spacecraft heard by NASA astronaut Butch Wilmore aboard the International Space Station has stopped. The feedback from the speaker was the result of an audio configuration between the space station and Starliner. The space station audio system is complex, allowing multiple spacecraft and modules to be interconnected, and it is common to experience noise and feedback. The crew is asked to contact mission control when they hear sounds originating in the comm system. The speaker feedback Wilmore reported has no technical impact to the crew, Starliner, or station operations, including Starliner’s uncrewed undocking from the station no earlier than Friday, Sept. 6.
NASA will return Boeing’s Starliner to Earth without astronauts Butch Wilmore and Suni Williams aboard the spacecraft, the agency announced Saturday during a news conference. The uncrewed return allows NASA and Boeing to continue gathering testing data on Starliner during its upcoming flight home, while also not accepting more risk than necessary for its crew. The news conference is available here.
Wilmore and Williams, who flew to the International Space Station in June aboard NASA’s Boeing Crew Flight Test, have been busy supporting station research, maintenance, and Starliner system testing and data analysis, among other activities.
“Spaceflight is risky, even at its safest and most routine. A test flight, by nature, is neither safe, nor routine. The decision to keep Butch and Suni aboard the International Space Station and bring Boeing’s Starliner home uncrewed is the result of our commitment to safety: our core value and our North Star,” said NASA Administrator Bill Nelson. “I’m grateful to both the NASA and Boeing teams for all their incredible and detailed work.”
Wilmore and Williams will continue their work formally as part of the Expedition 71/72 crew through February 2025. They will fly home aboard a Dragon spacecraft with two other crew members assigned to the agency’s SpaceX Crew-9 mission. Starliner is expected to depart from the space station and make a safe, controlled autonomous re-entry and landing in early September.
NASA and Boeing identified helium leaks and experienced issues with the spacecraft reaction control thrusters on June 6 as Starliner approached the space station. Since then, engineering teams have completed a significant amount of work, including reviewing a collection of data, conducting flight and ground testing, hosting independent reviews with agency propulsion experts, and developing various return contingency plans. The uncertainty and lack of expert concurrence does not meet the agency’s safety and performance requirements for human spaceflight, thus prompting NASA leadership to move the astronauts to the Crew-9 mission.
“Decisions like this are never easy, but I want to commend our NASA and Boeing teams for their thorough analysis, transparent discussions, and focus on safety during the Crew Flight Test,” said Ken Bowersox, associate administrator for NASA’s Space Operations Mission Directorate. “We’ve learned a lot about the spacecraft during its journey to the station and its docked operations. We also will continue to gather more data about Starliner during the uncrewed return and improve the system for future flights to the space station.”
Starliner is designed to operate autonomously and previously completed two uncrewed flights. NASA and Boeing will work together to adjust end-of-mission planning and Starliner’s systems to set up for the uncrewed return in the coming weeks. Starliner must return to Earth before the Crew-9 mission launches to ensure a docking port is available on station.
“Starliner is a very capable spacecraft and, ultimately, this comes down to needing a higher level of certainty to perform a crewed return,” said Steve Stich, manager of NASA’s Commercial Crew Program. “The NASA and Boeing teams have completed a tremendous amount of testing and analysis, and this flight test is providing critical information on Starliner’s performance in space. Our efforts will help prepare for the uncrewed return and will greatly benefit future corrective actions for the spacecraft.”
NASA’s Commercial Crew Program requires spacecraft fly a crewed test flight to prove the system is ready for regular flights to and from the space station. Following Starliner’s return, the agency will review all mission-related data to inform what additional actions are required to meet NASA’s certification requirements.
The agency’s SpaceX Crew-9 mission, originally slated with four crew members, will launch no earlier than Tuesday, Sept. 24. The agency will share more information about the Crew-9 complement when details are finalized.
NASA and SpaceX currently are working several items before launch, including reconfiguring seats on the Crew-9 Dragon, and adjusting the manifest to carry additional cargo, personal effects, and Dragon-specific spacesuits for Wilmore and Williams. In addition, NASA and SpaceX now will use new facilities at Space Launch Complex-40 at Cape Canaveral Space Force Station in Florida to launch Crew-9, which provides increased operational flexibility around NASA’s planned Europa Clipper launch.
The Crew-9 mission will be the ninth rotational mission to the space station under NASA’s Commercial Crew Program, which works with the American aerospace industry to meet the goal of safe, reliable, and cost-effective transportation to and from the orbital outpost on American-made rockets and spacecraft launching from American soil.
For more than two decades, people have lived and worked continuously aboard the International Space Station, advancing scientific knowledge and demonstrating new technologies, making research breakthroughs not possible on Earth. The station is a critical testbed for NASA to understand and overcome the challenges of long-duration spaceflight and to expand commercial opportunities in low Earth orbit. As commercial companies focus on providing human space transportation services and destinations as part of a robust low Earth orbit economy, NASA’s Artemis campaign is underway at the Moon where the agency is preparing for future human exploration of Mars.