Boeing is closer to understanding thruster failures on its first astronaut flight with latest test

Boeing is closer to understanding what went wrong with its astronaut capsule in orbit, now that testing is complete on a spare thruster here on Earth. The Starliner capsule has been docked at the International Space Station since June 6. It should have returned with its NASA test pilots by mid-June, but thruster failures and helium leaks prompted NASA and Boeing to extend its stay. Officials said Thursday there’s still no return date for astronauts Butch Wilmore and Suni Williams. Engineers will first disassemble the thruster that was test-fired in New Mexico. Then they’ll analyze the data before clearing Starliner for the trip home.