The first crewed flight of Boeing's new Starliner capsule has been pushed to the end of the week due to a technical issue.
Starliner was supposed to launch late Monday night (May 6) on Crew Flight Test (CFT), a roughly 10-day mission that will carry two NASA astronauts to the International Space Station (ISS) and back. But mission teams called the attempt off about two hours before Monday's planned liftoff, after identifying a faulty "oxygen relief valve" on the upper stage of Starliner's rocket ride, a United Launch Alliance (ULA) Atlas V. The valve was "buzzing," opening and closing rapidly, during the launch countdown, forcing the delay, ULA officials said.
