Commander Kenneth D. Bowersox and Flight Engineer Donald R. Pettit are relaxing in the U.S. Lab

ISS006-E-39461 (18 March 2003) --- Astronauts Donald R. Pettit (left), Expedition 6 NASA ISS Science Officer, and Kenneth D. Bowersox, mission commander, are pictured in the Destiny laboratory on the International Space Station (ISS). The supply tank and Fluid Control Pump Assembly (FCPA), which are a part of the Internal Thermal Control System (ITCS), are visible floating freeing above them.