Engineers Working to Resolve Endeavour's Air Leak

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NASA workers are still working to fix the mysterious air leak in the space shuttle

Endeavour's

cabin. They've been able to trace the problem down to one of two pressure-relief valves which are designed to ensure the crew cabin doesn't become over-pressurized.

The space agency seems confident enough that they'll trace down the source of the leak and have it resolved. The launch is still scheduled for Tuesday, August 7th at 7:02 pm EDT. If all goes well,

Endeavour's

launch will begin mission STS-118 - the 22nd to fly to the International Space Station.

The shuttle has a collection of cargo, air, fuel and water on board, as well as another truss segment to build up the station's backbone. I'll keep you all posted if there's another delay.

NASA Space Shuttle

Fraser Cain

Fraser Cain

Fraser Cain is the publisher of Universe Today, founding the website in March 1999. He's also the co-host of Astronomy Cast.