He also trained as a group member for flight on board the orbital complex Mir from March 1994 to June 1995.

On 2 March 1997 Soyuz TM-24 carrying Korzun, Kaleri and ESA astronaut Reinhold Ewald returned to Earth.

The scientific investigations aimed at studying cold plasma, crystal growth, radiation effects in the space and the human body.

Earth observation from outer space has many useful applications including informing the ground of disaster situations such as fires and floods as quickly as they occur.

[2] The Expedition 5 crew returned to Earth on December 7, 2002, aboard Space Shuttle Endeavour's STS-113 mission.

The main purpose was to complete connections of the cooperative solar array to provide more electrical power to the Mir station.

The main purpose was to complete connections of the cooperative solar array to provide more electrical power to the Mir station.

[5] The two spacewalkers got off to a late start because they evidently forgot to open an oxygen valve in their Russian Orlan spacesuits while getting prepared and the Pirs docking compartment airlock had to be repressurized.

Once the valves were set correctly, Korzun reported a pressure leak but the Russian officials declared it as a no issue.

[6] The start of the spacewalk was delayed because of an air leak in the sealed hatches between the Pirs airlock and the Zvezda module.

The problem was easily corrected but took Korzun and Sergei Treshchov almost a half-hour to step through the procedures and get ready to go outside.

[7] Wearing Russian Orlan spacesuits Korzun and Treshchov installed a frame on the outside of the Zarya module to house components for future spacewalk assembly tasks.

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