In "What do astronauts do with their trash on the ISS?", a commentator asked the title question and was encouraged to make it a new question, but apparently never did.

The linked question is referring to things that were on-board and inside the ISS for use by the crew (and disposed of as part of the crew's normal garbage disposal procedure), so the same parameters apply here.

If so, what, when, and how much?

  • 3
    $\begingroup$ @MagicOctopusUrn Just ISS waste; I added a clarifying statement. :) $\endgroup$
    – T.J.L.
    Oct 24, 2019 at 18:25
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    $\begingroup$ @MagicOctopusUrn Accidentally tossing your wedding ring into the ISS garbage is orders of magnitude worse than losing it in the sink. :) $\endgroup$
    – T.J.L.
    Oct 24, 2019 at 18:39
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    $\begingroup$ It may be hard to tell. There was a long-running problem with losing track of where various things on ISS were stored, especially once they were packed and re-packed. See e.g. airspacemag.com/space/lost-in-space-2217739 I'm not sure if anyone in the agency would take the position that an item had gotten into the trash instead of just been lost...but I hope I'm wrong :) $\endgroup$
    – Erin Anne
    Oct 25, 2019 at 10:15
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    $\begingroup$ This document seems to suggest that each individual item of trash is logged and tracked on a spreadsheet before it's finally designated for disposal. It feels like there's very little scope for an item to be ditched by accident if you're checking and re-checking each thing that goes into the bin. $\endgroup$
    – Richard
    Nov 12, 2019 at 23:32
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    $\begingroup$ I asked Paul Dye, the longest-serving NASA flight director and apparently there were a few instances of things brought back from Mir that should have stayed on the station. reddit.com/r/space/comments/humooh/… $\endgroup$ Jul 20, 2020 at 22:48


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