STS105-E-5091 (12 August 2001) --- Frank L. Culbertson, Jr., Expedition Three mission commander, assists Scott J. Horowitz (out of frame to the right), STS-105 commander, in opening Space Shuttle Discovery's airlock hatch leading to the International Space Station (ISS). Culbertson and cosmonauts Mikhail Tyurin and Vladimir N. Dezhurov will be replacing the Expedition Two crew as residents aboard the ISS. This image was taken with a digital still camera.