Cosmonaut breaks record in space – NASA is far behind. As of: February 7, 2024, 7:24 p.m By: Tanja Banner CommentsPressSplit No man has left the earth for a longer period of time than the Russian Oleg Kononenko.

He is currently on the International Space Station for the fifth time and has broken a record. With more than 878 days, he is the person with the longest stay in space. The US world record holder is astronaut Peggy Whitson.