Running two days late, a replacement space station crew blasted off Friday on a flight that sets the stage for Starliner astronauts Butch Wilmore and Sunita Williams to finally come home after nearly 300 days in space.

The Starliner saga is a step closer to its end with the launch of a SpaceX vehicle that will relieve the astronauts who flew on the Boeing spacecraft.

SpaceX will try again Friday evening to launch the replacement crew to the International Space Station where the pair of NASA astronauts who flew up last summer on Boeing’s Starliner have