The Boeing CST-100 Starliner (Crew Space Transportation) is a crew capsule under construction by Boeing as its participation in NASA's Commercial Crew Development (CCDev) program. Its primary purpose is to transport crew to the International Space Station (ISS)[5] and to private space stations such as the proposed Bigelow Aerospace Commercial Space Station.[6] Starliner is similar in concept to the Orion spacecraft being built for NASA by Lockheed Martin.[7] The capsule has a diameter of 4.56 mete... {open}

 

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