[1] The International Space Station expanded its science investigations, almost doubling the previous amount of experiments performed during the Expedition Four mission.

The fourth resident crew launched on 5 December 2001 on board Space Shuttle Endeavour during mission STS-108.

They became official station residents at 20:03 UTC on 7 December 2001, and remained on board until June 2002, when they landed on STS-111.

The team was led by Russian Yuri I. Onufrienko and joined by American crewmates Daniel W. Bursch and Carl E. Walz, both flight engineers.

This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration.