STS-105-E-5118 (12 August 2001) --- Frank L. Culbertson, Expedition Three mission commander, gives a thumbs up as he enters the Zvezda Service Module during the initial ingress into the International Space Station (ISS) for the STS-105 mission. Culbertson, accompanied by cosmonauts Vladimir N. Dezhurov and Mikhail Tyurin, will be replacing astronauts Susan J. Helms and James S. Voss and cosmonaut Yury V. Usachev as the temporary residents on the ISS. This image was taken with a digital still camera.