“'Indestructible' tardigrades may be alive on the Moon” Some tardigrades look like small rocks and are very hard to prove they are alive in the field. I gave a talk in the 1980s in Princeton about possibly moon and asteroid tardigrades.https://www.france24.com/en/20190807-indestructible-tardigrades-may-be-alive-moon …
Roger, indeed that’s the interesting part. If these is water and there is the right environment, there is opportunity to scavenge oxogen from the surrounding area. On earth they can live in no oxygen for days in some cases.