User:Robertinventor/Simple animals could live in Martian brines - Extended Interview with planetary scientist Vlada Stamenković: Difference between revisions
User:Robertinventor/Simple animals could live in Martian brines - Extended Interview with planetary scientist Vlada Stamenković (edit)
Revision as of 19:11, 23 September 2019
, 4 years ago→Could oxygen get into the subglacial lakes?
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:: {{WNIQ}} Some news stories coupled your research with the subglacial lakes announcement earlier this year. Could the oxygen get through ice into layers of brines such as the possible subglacial lakes at a depth of 1.5 km?
::'''VS''': There are other ways to create oxygen. {{w|Radiolysis}} of water molecules into hydrogen and oxygen can liberate oxygen in the deep and that O<sub>2</sub> could be dissolved in deep groundwater. The radiolytic power for this would come from radionuclides naturally contained in rocks, something we observe in diverse regions on Earth.
:: {{WNIQ}} Could radiolysis take the oxygen concentrations higher than the figures you got?
::'''VS''': This is TBD and would depend on the production rate and the depth where it is produced (~pressure).
<!-- this is covered in the article by Möhlmann in Background section and also in the overview article by Martinez and Renno in the background information section -->
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'''''(background information):''''' So, his answer here is that it could be possible by the same process, radiolysis of the ice through radioactivity in the rocks.
:: {{WNIQ}} Could undercooled liquid interface water take up oxygen too?
::'''VS''': Yes.
:: {{WNIQ}} Any idea of timescale yet for the oxygen to be taken up - is this hours, days, months, years? E.g. could oxygen get into water from melting of morning frosts, and ice melting briefly in the Hellas basin or is this impossible on such a short timescale (if you know)? Similarly for the deliquescing salts that Curiosity found beneath its wheels as it drove over the sand dunes, that form overnight and dry up during the day
::'''VS''': This is still fully under investigation, so there’s unfortunately no info on this yet.
===Planetary protection issues===
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