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A comment on Liquid water 'lake' revealed on Mars. Parent comment

Re:Liquid water 'lake' revealed on Mars by rch on Wednesday July 25, 2018 @11:10AM (#17609851)
Aside from the logistical concerns others have mentioned, I would expect the risks of contaminating this site with terrestrial stowaways would be relatively high.
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Re:Liquid water 'lake' revealed on Mars by criddell on Wednesday July 25, 2018 @01:17PM (#17610969)
Wouldn't rock from Earth end up on Mars the same way that Martian rocks fall on Earth? If so, then contamination may have already happened in both directions.
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Re:Liquid water 'lake' revealed on Mars by rch on Wednesday July 25, 2018 @05:28PM (#17613027)
True, but if we transport a modern microbe then we might miss our chance to isolate the relatively "indigenous" version and be unable to prove that such naturally occurring exchanges are possible.
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