Mission Specialist (MS) Rex J. Walheim waves while working on connecting the starboard Forward Avionics Umbilical from the S0 Truss to the U.S. Laboratory / Destiny during the first Extravehicular Activity (EVA) of the STS-110 mission. Walheim is being assisted by a Portable Foot Restraint (PFR) and the Space Station Remote Manipulator System (SSRMS) / Canadarm2. Walheim's helmet lights are on.
