 Earlier this month, Wilmore and Williams flew to the station aboard Boeing's new spaceship, which it called Starliner. The flight came after years of delays due to numerous software glitches and hardware problems. And as they arrived at the station, several thrusters on the new spaceship failed to fire. NASA also found leaks in a separate part of the propulsion system. NASA has said the latest problems do not appear to be dangerous, but that it needs more time to complete a full review. Jeff Brumfield, NPR News.