Oleg Kononenko vs Gennady Padalka

Oleg Kononenko is the world's most experienced space traveler in terms of cumulative time spent in orbit. Having surpassed 1,000 days in space, he has become the definitive subject for studying the long-term impacts of microgravity. His career is marked by numerous long-duration expeditions to the International Space Station, where he has performed critical maintenance and scientific experiments....

Gennady Padalka is a legendary cosmonaut who held the record for the most cumulative time in space for several years. A veteran of five spaceflights, he spent over 878 days in orbit, serving as commander on multiple missions to both the Mir and the International Space Station. His extensive experience in orbital operations and his ability to manage complex international crews have made him one of...