Hydrogen gas leaking again from space shuttle tank

Hydrogen gas is leaking again from a vent line on space shuttle Endeavour's external fuel tank. Launch officials have yet to call off Wednesday morning's launch attempt. But it appears unlikely the shuttle will be able to take off. That means the space station construction mission will be delayed until July. NASA said the leak is occurring in the same place as one that cropped up Saturday during fueling and caused a four-day launch delay. More

(Source: Associated Press - Jun 17)