In this context, I mean, a way to get out of the station, without depressurizing the entire station.

The obvious ones are:

  • Quest airlock on Unity (Node 1).
  • Pirs (DC-1) airlock

Does Poisk (DC-2? Or is MRM 1?) have an airlock?

When Nauka launches, the small airlock attached to Rassvet will be moved over.

Kibo (JAXA model) has a small airlock for experiments.

Can either of the 2 PMA's be depressurized and compartmentalized, so that they could be used as an airlock?

CBM ports cannot.

Can any other Russian segment components provide airlock style services?


1 Answer 1


Would you count the Transfrer Compartment of Zvezda

Transfrer Compartment of Zvezda

and Pressurized Adaptor of Zarya (each looking like a spherical part of the module)? There even was an official EVA from TC of Zvezda.

MLM Nauka is going to have a a similar spherical compartment. In addition to that a separate airlock for experiments will be provided. See this short 2012 Roscosmos video about MLM. At 4:00 the airlock is demonstrated. Sorry this is all in russian.

  • $\begingroup$ I would have, except they are now enclosed, by being docked to each other? Or is TC of Zvezda, the aft port? In which casem sure. $\endgroup$
    – geoffc
    Commented Apr 18, 2014 at 1:42
  • $\begingroup$ Well, yes. They'd need to undock all the pendant modules. Think about the ISS not as a celestial palace with fixed configuration, but a swarm of modules moving around each other, undocking and re-docking with each other as needed. $\endgroup$
    – user54
    Commented Apr 18, 2014 at 9:15

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.