Watch live coverage as Elon Musks SpaceX and NASA make a second attempt at liftoff of a Falcon 9 rocket and Dragon capsule with two U.S. astronauts. This is the first mission of its kind to the International Space Station in nearly a decade. Pre-launch coverage will start at 11 a.m. with the launch scheduled to begin at 3:22 p.m. Saturday, May 30. Related headlines:Watch historic SpaceX launch of NASA astronauts: