A suspect fuel valve on the space shuttle Discovery functioned correctly five times during launch pad tests on Wednesday, NASA said. The results mean there's still a chance that NASA will go ahead ...

CAPE CANAVERAL, Florida -- NASA called off the launch of space shuttle Discovery for a second time Tuesday after a critical fuel valve failed to work properly. Launch officials halted the countdown ...

NASA called off the launch of the space shuttle Discovery for a second time Tuesday after a critical fuel valve failed to work properly. Launch officials halted the countdown midway through the ...

CAPE CANAVERAL -- Discovery and seven astronauts will remain grounded until at least Friday so technicians can test a faulty propulsion system valve that failed as the shuttle was being fueled Tuesday ...

Thisstory was updated at 7:00 p.m. EDT. CAPECANAVERAL, Fla. - A broken valve on the space shuttle Discovery forced NASA tocall off the spacecraft?s second launch attempt in a row late Tuesday ...

CAPE CANAVERAL, Fla. — This week’s test to verify a modification to space shuttle Atlantis’ fuel tank ended up revealing a leaky valve in one of the shuttle’s main engines, a problem that would have ...

Flight controllers today struggled to open a stuck valve in a cooling loop at the International Space Station. For now, the space station is being cooled properly, but the valve needs to be opened or ...

— -- A stuck fuel valve prompted NASA to call off the scheduled launch of the space shuttle Discovery during fueling earlier today. Space shuttle managers and engineers immediately went into ...