Talking Space

May 6th was going to be the date that Astronauts Butch Wilmore and Sunni Williams were going to take the Boeing CST 100 Starliner spacecraft to the International Space Station for the first time with astronauts on board. Starliner has undergone a rather stormy development period and is several years behind schedule as a result but NASA, Boeing, and United Launch Alliance (ULA) teams after the earlier flight readiness review were confident that the spacecraft was ready for crewed flight. The mission also marked the first time since Leroy Gordon Cooper’s Mercury-Atlas 9 on May 15th, 1963, that a human was going to ride to orbit on the “shoulders” of an Atlas launch vehicle. Even the weather for the attempt on May 6th was 95 percent “go.” Unfortunately, the May 6th date was not to be. A cranky valve on board the Second Stage (Centaur Stage) of the ULA Atlas V kept Starliner on the ground. We explore what exactly happened, put the event in context, and gauge public reaction on various social media outlets. We als