ISS S1 Truss

ISS S1 Truss structure (NASA)

A view of the Starboard One (S1) Truss newly installed on the International Space Station (ISS) as photographed during the mission’s first scheduled session of extravehicular activity (EVA). The station’s Canadarm2 is in the foreground. Astronauts Piers J. Sellers (lower left) and David A. Wolf (upper right), both STS-112 mission specialists, are visible (10 October 2002).