Long-Duration Medical Residency Begins
Arrives aboard Mir to begin an extended medical research mission studying the physiological effects of long-duration spaceflight.
Historical biography archive · Updated 2026-11-03
Valeri Vladimirovich Polyakov Biography and Timeline
Follow Valeri Vladimirovich Polyakov through 4 dated historical records for Russia.
Valeri Vladimirovich Polyakov, historical timeline
A chronological timeline drawn from matching World History Database records.
4Distinct records
1 of 1Page
1988–1995Years on this page
1988
1994
Soyuz TM-18 Launch
Launches toward Mir to begin the long-duration medical mission that tests human adaptation to an exceptionally extended stay in orbit.
1995
Longest Continuous Spaceflight
Returns after spending 437 consecutive days aboard the Mir space station.
Mir Long-Duration Mission
The achievement marks mir long-duration mission as an important Russian scientific milestone.
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.