CNN reports that a faulty fuel sensor has delayed the launch of the Space Shuttle. The launch would have been the first since the Columbia disaster 2 1/2 years ago.
NASA said the sensor device was showing low fuel levels despite the exterior tank having been filled just hours before.
"It will take some time really to understand what to do to remedy the situation," NASA spokesman George Diller said.
"There are long faces here in the control center and around the site. Everybody was so looking forward to flying today," Diller said.
Crew members were already aboard the orbiter when the launch was canceled.
The current launch window closes on July 31st so NASA will have until then to launch Discovery. CNN says the launch has been delayed until at least Saturday.
