Two astronauts who should have been back on Earth weeks ago say they're confident that Boeing's space capsule can return them safely. NASA test pilots Butch Wilmore and Suni Williams launched aboard Boeing's Starliner capsule early last month. Leaks and thruster failures almost derailed their arrival at the International Space Station, and has kept them there much longer than planned. In their first news conference from orbit Wednesday, the pair said they expect to return once thruster testing is complete here on Earth. They say they're not complaining about getting extra time in orbit, and are enjoying helping the station crew.