NASA astronauts Nicole Mann and Josh Cassada view the rollout of a Boeing Starliner spacecraft before a test flight in December 2019. Credit: NASA/Joel Kowsky
NASA has reassigned two rookie astronauts from missions on Boeing’s troubled Starliner crew capsule to a SpaceX crew mission to the International Space Station late next year, a move agency officials said will allow the astronauts to gain spaceflight experience for future lunar expeditions.