Sunita Williams' space mission called off minutes before launch

Indian-origin NASA astronaut Sunita Williams' third mission to space was called off minutes before launch. The mission, which was supposed to carry NASA astronauts Butch Wilmore and Williams to and from the International Space Station, was scrubbed "due to an observation of a ground launch sequencer". It was the second time the astronauts' launch on Boeing Starliner was called off.