Who are Nasa pioneers flying on Boeing's Starliner? Set to return with SpaceX

Two experienced Nasa astronauts, Barry Wilmore and Sunita Williams, launched on Boeing's Starliner for a test flight from Florida. Initially scheduled for an eight-day mission, their stay at the ISS was extended due to Starliner's propulsion issues. They will return on a SpaceX vehicle early next year due to safety concerns.