Krikalev and Volkov
Okay so back to Krikalev and Volkov, the men who were on Mir station in October 1991. They both spent time on the space station for 151 days is 1988-1989, so for both men, it’s their second time on Mir.
Source: theguardian.com
In 1958, Krikalev was born in the Soviet city of Leningrad, which is now known as St. Petersburg. After high school, he attended the Leningrad Mechanical Institute. In 1981 he graduated with an honors degree in mechanical engineering.