The first two astronauts to fly Boeing's Starliner capsule said from the International Space Station on Wednesday they were confident in the spacecraft's ability to return them home whenever the company and NASA solve thruster issues that have kept them in space far longer than expected.

"I have a real good feeling in my heart that this spacecraft will bring us home, no problem," NASA astronaut Sunita "Suni" Williams said during the test crew's first news conference since docking to the ISS more than a month ago.

Williams and Barry "Butch" Wilmore, both veteran NASA astronauts and former U.S. Navy test pilots, were launched aboard Starliner from Florida on June 5 and docked the next day at the ISS, where they were initially scheduled to spend roughly eight days.