Four astronauts are on their way to the International Space Station after being sidelined by Boeing's Starliner trouble and other issues. SpaceX launched the U.S.-Japanese-Russian crew from Florida on Friday. They should reach the space station this weekend, replacing colleagues who launched in March as fill-ins for NASA's two stuck astronauts. Leading the taxi flight for NASA is Zena Cardman. She was yanked from a SpaceX flight last year to make room for Starliner's test pilots whose capsule was judged too dangerous to fly. Two of her crewmates were also training on Starliner, which remains grounded until next year.
