Picture of the CST-100 Starliner space capsule in orbit.

CST-100 Starliner

The Starliner is a next-generation space capsule that will take people to and from low-Earth orbit.

A 21st Century Space Capsule

Boeing's Crew Space Transportation (CST)-100 Starliner spacecraft is being developed in collaboration with NASA's Commercial Crew Program. The Starliner was designed to accommodate seven passengers, or a mix of crew and cargo, for missions to low-Earth orbit. For NASA service missions to the International Space Station, it will carry up to four NASA-sponsored crew members and time-critical scientific research. The Starliner has an innovative, weldless structure and is reusable up to 10 times with a six-month turnaround time. It also features wireless internet and tablet technology for crew interfaces.

Feature Stories


Mike Dahm

For this ‘train conductor’ to the stars, it’s all aboard

May 30, 2023 in Space

When working with spacecraft such as the CST-100 Starliner, testing is a team event.

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Liz Poul pauses for a photo in front of the Starliner after it returned from space in December 2019 following the Orbital Flight Test. (Boeing photo)

Giving her all

May 2, 2023 in Space

A systems engineer on the Starliner program learned the importance of giving back at a young age.

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Desire to learn expands a space leader’s orbit

Desire to learn expands a space leader’s orbit

March 13, 2023 in Space

A manager’s career comes full circle with his work on Starliner while his journey of growth continues.

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Marcelo Blalock

Father and son had hands in build of Starliner

February 27, 2023 in Space

Engineering is in Marcelo Blalock’s blood with his dad’s rich space history.

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Finding her center of gravity, on and off the job

Finding her center of gravity, on and off the job

February 13, 2023 in Space

Lori Sandberg, lead Weights and Mass Properties engineer, who grew up in the wheat fields of Wyoming, helps ensure Starliner meets weight requirements for a safe and successful launch and return.

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 Starliner Crew Flight Test patch revealed

Starliner Crew Flight Test patch revealed

January 5, 2023 in Space

Astronauts who will pilot the spacecraft to the International Space Station inspired the Crew Flight Test patch design.

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Starliner approaching the International Space Station during OFT-2 (Photo: NASA)

Starliner wins a 2022 Popular Science Best of What’s New Award

November 30, 2022 in Space

Starliner autonomously docked to the International Space Station this year. That significant step forward landed Starliner on Popular Science’s 2022 Best of What’s New list.

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Two NASA flight directors during Starliner’s Orbital Flight Test Two

Starliner’s skippers reflect on successful flight test

July 7, 2022 in Space

Unprecedented arrangement between NASA and Boeing enables the best flight controllers in human spaceflight to fly Starliner.

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Starliner engineer’s petite size aided in crew seat design

July 7, 2022 in Space

3D technology also plays a role in seat adjustability and cabin design.

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Island skies inspire a bright future in engineering, space

Island skies inspire a bright future in engineering, space

April 19, 2022 in Space

While spending part of her youth on a military base in the Marshall Islands in the Pacific Ocean, whether at the beach, in the yard or on her dad’s boat, Amy Comeau often looked at the sky.

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Amy Comeau, part of the CST-100 Starliner team, is shown in front of the Commercial Crew and Cargo Processing Facility. (Credit: John Proferes)

NASA honors Boeing Space and Launch trailblazers

December 2, 2021 in Space

NASA honors Boeing Space and Launch trailblazers from International Space Station, Commercial Crew and Space Launch System.

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A 21st Century Spacesuit

Lightweight. Highly mobile. Minimalistic. Innovative. The architecture of Boeing’s newly designed spacesuit combines the first-hand experience of veteran astronaut Chris Ferguson with David Clark Co.’s decades of suit design, development, test and evaluation insight as the makers of more than a dozen air and space suits, including those for Gemini, Apollo and Space Shuttle missions. The “Boeing Blue” suit will be worn by all Starliner crew members during launch, ascent and re-entry and will be customized for each crew member to maximize protection, capability and comfort.

Want more images of the spacesuit? Check out the Starliner Gallery.

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The Starliner is setting the foundation for commercial passenger spaceflight services to and from low-Earth orbit. NASA is Boeing's anchor customer for the Starliner, beginning with missions to the International Space Station carrying NASA and NASA-sponsored crew members.

Quick Facts

  • The Starliner is a reusable spacecraft that combines a proven capsule architecture, materials and subsystem technologies with 21st century innovations.
  • The Starliner’s economic impact can be seen across the United States, with more than 425 suppliers in 37 states.
  • The pusher abort system provides safe crew escape throughout the launch and ascent phase of the mission.
  • Wireless internet will assist with crew communication, entertainment and docking with the International Space Station.
  • An innovative weldless design eliminates the structural risks of traditional welds, and it also reduces mass and production time.
  • Boeing-developed training devices provide Starliner crews extensive training on the most technologically advanced, proven and integrated systems, ensuring astronauts learn how to handle any situation that could arise in the harsh environment of space, even with a spacecraft that is designed to be autonomous.
  • In addition to both an uncrewed and a crewed flight test, NASA has ordered six Boeing crew rotation missions to the International Space Station aboard the Starliner, which will be Boeing's first commercial human spaceflight missions.
  • Starliner’s crew access tower is the first new access tower to be built along Florida’s Space Coast since the Apollo era. The crew access arm and white room, which are about 169 feet (51.5 meters) above the launch pad surface of Space Launch Complex 41, are where crews will begin boarding the Starliner before launch.
  • Space Launch Complex 41 has been used only for non-crew spacecraft to this point, hosting Titan rockets beginning in 1965 and then the Atlas V since 2002. Notable NASA missions launched from the Starliner launch pad include the Viking robots that landed on Mars, the Voyager spacecraft that toured the outer planets, the New Horizons probe that flew past Pluto, and the Curiosity rover currently traversing Mars.

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