 "Mir" was continuously occupied for 3,644 days, eight days short of 10 years, between the launch of Soyuz TM-8 on September 5, 1989 and the landing of Soyuz TM-29 on August 28, 1999.This record was held until surpassed by the International Space Station (ISS) in 2010.The ISS has been continuously occupied for days.