Top 3 Longest-Serving ISS Crewed Missions

Comparing historical durations of crewed expeditions to the International Space Station, highlighting endurance records set by space agencies.

The top 3

  1. Frank Rubio's Record Stint: NASA astronaut Frank Rubio holds the record for the longest single spaceflight by an American, lasting 371 days ending in 2023. Frank Rubio
  2. Valeri Polyakov's Mir Record: Cosmonaut Valeri Polyakov holds the all-time record for the longest single human spaceflight, spending 437 days aboard Mir. Valeri Polyakov
  3. SpaceX Crew-6 Duration: The Crew-6 mission set a benchmark for modern commercial crew rotations, remaining docked for 186 days in 2023. SpaceX

Sources

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