Stock Photo - Astronaut Lee M.E. Morin (foreground) works on the International Space Station with his feet secured in a restraint on the end of the station's robotic arm during the second day of STS-110 extravehicular activity. Astronauts Morin and Jerry L. Ross (partially obscured by Morin in this frame) completed the structural attachment of the newest component of the orbital outpost, mating two large tripod legs of a 13 ½-ton truss to the station's main laboratory during a 7-hour, 30-minute spacewalk. The station will ultimately span some 350 feet from end to end, slightly longer than a football field. The work of the two mission specialists complemented that of the previous day by astronauts Steven L. Smith and Rex J. Walheim.