Cosmonauts Yury Usachev and Yuri Lonchakov work in the Zvezda Service Module

ISS002-E-5855 (26 April 2001) --- Two cosmonauts from Rosaviakosmos, Yury V. Usachev (left), Expedtion Two mission commander, and Yuri V. Lonchakov, STS-100 mission specialist, work on the Treadmill Vibration Isolation System (TVIS) in the Zvezda Service Module during the STS-100 visit to the International Space Station (ISS). The image was taken with a digital still camera.