The crew installed a new truss segment, unfurled new solar arrays and folded up an old one, completing the truly tricky tasks begun on the past two missions.

Space Station Construction - STS-117

As the ISS edges closer to completion, the STS-117 crew completed the much needed power upgrade. Hear how it was done, in their own words.

Reporter: Tariq Malik  Producer/Editor: Chris Rodriguez  Producer: Dave Brody