Boeing's troubled Starliner capsule that left two NASA astronauts on the International Space Station last year may need to fly a third uncrewed test flight before it carries astronauts again, agency officials said as the spacecraft's first crew had to return to Earth on a SpaceX capsule this week.

The last Boeing Starliner mission was extended from eight days to over nine months due to capsule issues after docking at the International Space Station.

NASA is considering another test flight of Boeing's Starliner vehicle, with or without a crew on board. The Starliner saga may not be over just yet. Despite a failed test flight that left a crew stranded in space,