ISS004-E-5269 (December 2001) --- Cosmonaut Yuri I. Onufrienko, Expedition Four mission commander, flanked by astronauts Daniel W. Bursch (left) and Carl E. Walz, both flight engineers, pose for an informal crew photo in the Zvezda Service Module on the International Space Station (ISS). Onufrienko represents Rosaviakosmos. The image was taken with a digital still camera.