The STS-122 astronauts perform spacewalks installing the new Columbus laboratory to the starboard port of the space station's hub-like Harmony connecting node and delivering a new member of the outpost's Expedition 16 crew.

Space Station Construction - STS-122

As the ISS edges closer to completion, STS-122's crew adds the new Columbus lab, which marks Europe's first permanently crewed science facility to reach space. Hear how it will be done, in their own words...