KENNEDY SPACE CENTER, Fla.--The shuttle Discovery's planned launch early Wednesday on a space station resupply mission was called off during fueling Tuesday when a valve in a liquid hydrogen feedline ...

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 ...

NEW YORK—NASA delayed the planned Feb. 12 launch of the Space Shuttle Discovery by at least a week to allow extra time to evaluate vital fuel valves on the spacecraft. Discovery was slated to deliver ...

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 ...

The 5.5 × 12.2-mm IMH shuttle valve has a nondetented, selective design to solve problems with hydraulic isolation in manifolds The 5.5 × 12.2-mm IMH shuttle valve has a nondetented, selective design ...

Many call it the most dangerous part on the space shuttle, and after nearly two years of intensive redesign work, it remains a major concern to astronauts, outside experts and some NASA engineers. The ...

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 ...

The 375 detented shuttle valve is for high-pressure applications with system pressures up to 5,000 psi The 375 detented shuttle valve is for high-pressure applications with system pressures up to ...

KENNEDY SPACE CENTER, Fla.--NASA managers Thursday ordered another delay for launch of the shuttle Discovery, from early Friday morning to late Friday night, to give engineers additional time to make ...

NASA engineers are testing a leaky helium valve on the space shuttle Discovery to see if the shuttle can still launch to the International Space Station next month or if it must stand down for repairs ...

Thisstory was updated at 10:20 p.m. EST. NASA hasdelayed the planned Feb. 12 launch of the space shuttle Discovery by at least aweek to allow extra time to evaluate vital fuel valves on the spacecraft ...