Mission Highlights
Expedition 2, the second long-term crew for the International Space Station arrived in March 2001. They returned to Earth on mission STS-105, 22 August 2001 after having spent 163 days aboard the station and 167 days in space. Only Voss performed a spacewalk on STS-101, along with Jeffrey Williams.
During this expedition, research facilities launched to the Space Station included a Human Research Facility, two EXPRESS (Expedite the Processing of Experiments to the Space Station) Racks, one of which contains the Active Rack Isolation System and the Payload Equipment Restraint System. They also prepared the Destiny laboratory to enable upcoming experiments to be conducted.
A major focus was on gaining a better understanding of how to protect crew members from radiation while working and living in space. Radiation exposure in high doses over long periods of time can damage human cells and cause cancer or injury to the central nervous system.
Read more about this topic: Expedition 2
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