Background
Avdeyev was born in Chapayevsk, Samara Oblast (formerly Kuybyshev Oblast), Russian SFSR.
Avdeyev was born in Chapayevsk, Samara Oblast (formerly Kuybyshev Oblast), Russian SFSR.
He graduated from Moscow Physics-Engineering Institute in 1979 as an engineer-physicist.
From 1979 to 1987 he worked as an engineer for NPO Energiya. He was selected as a cosmonaut as part of the Energia Engineer Group 9 on 26 March 1987. His basic cosmonaut training was from December 1987 through to July 1989.
He retired as a cosmonaut on 14 February 2003.
Avdeyev at one point held the record for cumulative time spent in space with 747.59 days in earth orbit, accumulated through three tours of duty aboard the Mir Space Station. He has orbited the earth 11,968 times traveling about 515,000,000 kilometers.
In August 2005, this record was taken by another cosmonaut, Sergei K. Krikalev. Avdeyev is married with two children.
He is an amateur radio operator, and his call sign is RV3DW. Foreign a long time, Avdeyev held the record for time dilation experienced by a human being.
In his 747 days aboard Mir, cumulative across three missions, he went approximately 27,360 km/h and thus aged roughly 0.02 seconds (20 milliseconds) less than an Earthbound person would have, which is considerably more than any other human being, except Sergei Krikalev. This is due to the special relativistic effect of time dilation and is not properly thought of as time travelling as described by mainstream culture. A common misconception is that the Apollo astronauts hold the record—they did go faster than Avdeyev, but they were only in space for a few days.
Soyuz TM-15 – 27 July 1992 to 1 February 1993 – 188 days, 21 hours, 41 minutes, 15 seconds Soyuz TM-22 – 3 September 1995 to 29 February 1996 – 179 days, 1 hour, 41 minutes, 45 seconds Soyuz TM-28 & Soyuz TM-29 – 13 August 1998 to 28 August 1999 – 379 days, 14 hours, 51 minutes, 9 seconds 1.
MIR Earth Observation-12 – 3 September 1992 – 3 hours, 56 minutes 2. MIR Earth Observation-12 – 7 September 1992 – 5 hours, 8 minutes 3.
MIR Earth Observation-12 – 11 September 1992 – 5 hours, 44 minutes 4. MIR Earth Observation-12 – 15 September 1992 – 3 hours, 33 minutes 5.
MIR Earth Observation-20 – 20 October 1995 – 5 hours, 11 minutes 6.
MIR Earth Observation-20 – 8 December 1995 – 0 hours, 37 minutes 7. MIR Earth Observation-26 – 15 September 1998 – 0 hours, 30 minutes 8. MIR Earth Observation-26 – 17 November 1998 – 5 hours, 54 minutes 9.
MIR Earth Observation-27 – 23 July 1999 – 6 hours, 7 minutes 10.
MIR Earth Observation-27 – 28 July 1999 – 5 hours, 22 minutes.