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SESK: Stuff Everyone Should Know · sesk.info/aero-iss-five-agencies

How many space agencies run the International Space Station together?

Five: NASA, Roscosmos, ESA, JAXA and CSA.

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  1. Two
  2. Fifteen
  3. Five ✔

Why: Five space agencies from 15 countries operate the ISS: the U.S., Russian, European, Japanese and Canadian agencies.

Huh, didn't know that: Canadarm2 can move station modules, deploy experiments and carry spacewalking astronauts.

The dad joke
Why does the ISS have so many partners? Teamwork makes the dream orbit.
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References

Answer: Five. Five space agencies from 15 countries operate the ISS: the U.S., Russian, European, Japanese and Canadian agencies.

  1. NASA, Space Station Facts and Figures www.nasa.gov/international-space-station/space-station-facts-and-figures
    An international partnership of five space agencies from 15 countries operates the International Space Station.
    Checked 2026-10-10.
  2. NASA, Space Station Facts and Figures www.nasa.gov/international-space-station/space-station-facts-and-figures
    is used to move entire modules, deploy science experiments and even transport spacewalking astronauts.
    Checked 2026-10-10.

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