A United Launch Alliance Atlas 5 rocket was fueled for launch May 6, 2024 for the Starliner Crew Test Flight. Image: NASA TV.
An Atlas 5 rocket carrying astronauts for the first time was fueled for blastoff Monday night to boost Boeing’s long-delayed Starliner crew ferry ship into orbit for its first piloted test flight. But trouble with a valve in the rocket’s upper stage forced mission managers to order a scrub just two hours before takeoff.