NASA Set Discovery STS-119 Launch Time At 7:43 EST

Discovery's countdown has entered the last planned hold at T-9 minutes. During the 45-minute hold, the Mission Management Team, Mission Control team and Launch Control team will conduct polls and give a final "go" decision for launch.

Launch is targeted for 7:43 p.m. EDT.

Commander Lee Archambault will lead Discovery's crew of seven, along with Pilot Tony Antonelli, and Mission Specialists Joseph Acaba, John Phillips, Steve Swanson, Richard Arnold and Japan Aerospace Exploration Agency astronaut Koichi Wakata on mission STS-119 to the International Space Station.

The Discovery crew members are set to fly the S6 truss segment and install the final set of power-generating solar arrays to the International Space Station. The S6 truss will complete the backbone of the station and provide one-fourth of the total power needed to support a crew of six.

Discovery was set to launch on March 11, but a gas leak posponed the STS-119 launch.

We wish Discover a successful launch.