STS-119 Discovery launches final solar array to ISS

3/15/09 ~ 7:43 p.m.

The Space Shuttle Discovery rockets into orbit 12 minutes after sunset on STS-119, the 125th flight of the space shuttle program. Discovery took to the International Space Station the fourth and final set of gigantic solar arrays to power the space station, completing the huge backbone-like truss on the outpost in the process.