Question: who has spent the most time in space
Answer: Russian cosmonaut Gennady Padalka , who has spent 878 days in space over five missions , became the record holder for the most time spent in space when he surpassed , on 28 June 2015 , the record of cosmonaut Sergei Krikalev , who spent 803 days , 9 hours and 39 minutes ( about 2.