Boeing’s CST-100 Starliner is lifted into a test chamber at Boeing’s Space Environment Test Facility in El Segundo, Calif. There, Boeing engineers conducted different environmental qualification test programs, proving the vehicle is capable of withstanding the harsh environments it will see during launch, ascent and orbit. This is the Starliner that will be used for Boeing’s Crew Flight Test as part of NASA’s Commercial Crew Program, which is working with Boeing to return human spaceflight launches to the space station from U.S. soil.