The primary objectives of STS-105 were to transport the Expedition Three crew, and several payloads and scientific experiments, to the International Space Station. The Early Ammonia Servicer (EAS) tank, which will support the thermal control subsystems until a permanent system is activated, was attached to the Station during two spacewalks. The Expedition Two crew returned to Earth aboard Discovery after a five-month stay on the Station. 

Launch Date: August 5, 2001 7:05 p.m. EDT Launch Vehicle: Discovery Crew: Scott J. Horowitz, Frederick W. Sturckow, Daniel T. Barry, Patrick G. Forrester, Frank L. Culbertson, Jr. Mikhail Tyurin, Vladimir N. Dezhurov, Yury V. Usachev, James S. Voss, Susan J. Helms