A total of 184 days, 22 hours and 15 minutes were logged in space by Sergei Treshchov during his tenure as a flight engineer aboard the International Space Station. His mission, part of the Expedition 5 crew, saw him transition from ground-based technical support to active orbital operations following years of intensive preparation within the Russian space sector.
Early Education and Technical Training
Born in Lipetsk in 1958, Treshchov pursued a career in electrical engineering. He graduated from technical school in 1976 as an electric welder before enrolling at the Moscow Power Engineering Institute. He completed his studies there in 1982, specializing in the field of electrical power disciplines.
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Between 1982 and 1984, Treshchov served as a group leader within an Air force regiment. He transitioned to RSC Energia in 1984, where he worked as a foreman and engineer for two years. His professional responsibilities included coordinating training protocols with the Yuri Gagarin Cosmonaut Training Center and developing technical documentation for station activities. He officially entered the RSC Energia cosmonaut detachment in 1992, completing basic training by 1994 and advanced test training by 1996.
Expedition 5 Mission
Launched on June 5, 2002, aboard Space Shuttle Endeavour, Treshchov joined the International Space Station on June 7. During his residency, the crew managed 25 new scientific investigations alongside ongoing projects, focusing on cold plasma, crystal growth, and radiation effects. On August 26, 2002, he performed a 5-hour and 21-minute spacewalk. Accompanied by Valery Korzun, he installed hardware on the Zarya module, added material samples to Japanese Space Agency experiments, and placed amateur radio antennas on the Zvezda module.
Professional Recognition
Treshchov concluded his mission on December 7, 2002, returning to Earth via the STS-113 mission. His contributions to the Russian space program and international collaboration were formally recognized with several honors. These include the title of Hero of the Russian Federation awarded in 2004, the Pilot-Cosmonaut of the Russian Federation title, and the NASA Distinguished Public Service Medal received in 2003.
Fast facts
- Born: 1958, Lipetsk
- Education: Moscow Power Engineering Institute
- Spaceflight Duration: 184 days, 22 hours, 15 minutes
- Military Rank: Senior lieutenant
- Mission: ISS Expedition 5
- Launch Date: 5 June 2002
- Hero of the Russian Federation: 2004
Questions readers ask
What was Treshchov's role during the Expedition 5 mission?
He served as a flight engineer aboard the International Space Station.
What specific tasks were completed during his spacewalk?
He installed a frame for future assembly tasks, placed material samples for Japanese experiments, and added antennas for amateur radio operations.
Achievements
- Educated at Moscow Power Engineering Institute
- Worked as engineer, astronaut and aircraft pilot
