Boeing's problem-plagued Starliner strikes again: Launch to the ISS is called off with less than two hours left in the countdown due to a rocket glitch

The first crewed flight of Boeing's problem-plagued Starliner capsule has once again been delayed due to a rocket glitch. But with less than two hours left on the countdown, the launch was called off due to a valve issue in the Atlas V rocket furnished by United Launch Alliance. The first test launch of the Boeing Starliners spacecraft has been delayed once again due to an unexpected rocket glitch The launch was called off with less than two hours before it was set to take veteran NASA astronauts Barry Wilmore and pilot Suni Williams to the ISS The CST-100 Starliner's inaugural voyage carrying astronauts to the International Space Station has been highly anticipated and much-delayed. This delay comes a full two years after the first successful test flight of the Starliner spacecraft, and five years since the first uncrewed launch to the ISS failed The two-member crew - NASA astronauts Barry 'Butch' Wilmore, 61, and Sunita 'Suni' Williams, 58 - had been strapped into their seats aboard the spacecraft for about an hour before launch activities were suspended. Selected to ride aboard Starliner for its first crewed flight were two NASA veterans who have logged a combined 500 days in space over the course of two previous missions each to the space station.