The shuttle Discovery, already delayed one day by bad weather, runs into more problems Tuesday when trouble with a hydrogen fuel line valve pushed launch to Friday at the earliest.

Trouble cooling one of the giant rocket's engines and a balky valve needed for troubleshooting ... began pumping 730,000 gallons of supercold liquid oxygen and hydrogen fuel into the SLS ...

Update: After about three hours of delay caused by stuck fuel valves, the Delta IV Heavy rocket boosted by the new RS-68A rocket engine made a successful maiden flight this morning at 9:15 Eastern ...

NASA's new Artemis moon rocket is illuminated by xenon lights as she sits on Launch Pad 39-B hours ahead of a planned launch at the Kennedy Space Center Saturday, Sept. 3, 2022, in Cape Canaveral ...

NASA's leak-plagued Space Launch System moon rocket ran into initially worrisome problems during a fueling test Wednesday, but engineers "managed" a fresh leak in a fitting that derailed a Sept. 3 ...

After that, leaks of hydrogen fuel required the agency to make repairs. Next, Hurricane Ian rolled in and forced the rocket to roll back to its hangar, which Parsons called "a bit of a let-down ...

NASA's new moon rocket ... Bolger was asked about the hydrogen fuel leak and the decision to send a “Red Team” of specially trained technicians to fix it by tightening nuts on a fuel valve.

NASA scrubs second try to launch moon rocket due to persistent hydrogen leak by Alan Boyle on September 3, 2022 at 2:17 pm September 3, 2022 at 2:35 pm Share 44 Tweet Share Reddit Email ...

The SLS requires more than 700,000 gallons of super-cold liquid hydrogen and liquid oxygen fuel to lift the 322-foot-tall rocket off the launchpad and into space. While an efficient rocket fuel ...

NASA officials described the engine-related problem with the agency’s moon rocket, which led to a launch delay Monday, as one more about plumbing than with the engine itself. Mike Sarafin, a NASA m ...

Now you can blast off this Discovery Hydrogen Fuel Rocket, a hydrogen-fueled missile powered by the same element that fueled the upper stages of the Saturn V launch vehicle that sent man to the moon.

NASA’s Space Launch System (SLS) rocket with the Orion spacecraft aboard is seen atop a mobile launcher at Launch Complex 39B, Monday, April 4, 2022. NASA/Joel Kowsky ...