Drat, that sounds reasonable!

I have a half formed idea that some piece of space junk which employed water for either cooling or for crew to drink could make an interesting objective for a future space mission. If the water had stayed sealed in it might have provided a habitat for something (a lot of space missions are much less well sterilized than interplanetary probes).
I thought it would be interesting to see how that something adapted to such a prolonged stay in micro or lower gravity, and outside earths magnetic field.

The final stage of the saturn V had an instrument unit attached which used a mix of water and methanol for coolant- I wondered if that might support something, but the methanol content is 60% and the final stages were all either slammed into the moon or drifted into their own orbits about the sun, hence retrieval is next to impossible.

Some commercial satellites apparently use water, or water plus something else mixtures, as a coolant, but information on which ones and how hot the water gets (above 130 odd degrees C and no know thing could survive) is thin on the ground.

I'm a bit stumped, my gut tells me that with all the stuff we've launched there must have been something that a microbe could have made a living in, but I may just have indigestion :(....