algorithms
Mars surface 'more uninhabitable' than thought: study
Thu Jul 27, 2017 6:14am
2601:1c0:5b02:b390:a01b:dc12:6796:85c8

Mars surface 'more uninhabitable' than thought: study

Hopes of finding life on Mars, at least on the surface, were dealt a blow Thursday by a study revealing that salt minerals present on the Red Planet kill bacteria.

In lab tests on Earth, the compounds known as perchlorates killed cultures of the bacteria Bacillus subtilis, a basic life form, a research duo from the University of Edinburgh's School of Physics and Astronomy reported.

Perchlorates, stable at room temperature, become active at high heat. Mars is very cold.

In the new study, Jennifer Wadsworth and Charles Cockell showed the compound can also be activated by UV light, without heat, in conditions mimicking those on the martian surface.

It killed bacteria within minutes, said the team, implying the planet was "more uninhabitable than previously thought."

"If we want to find life on Mars, we have to take this into consideration and look at trying to find sub-surface life that wouldn't be exposed to these conditions," Wadsworth told AFP.


    • wait and seeJim, Tue Aug 8 2:58am
      this must mean there are some pretty good photos due to come out.
      • Uh...Jim...algorithms, Tue Aug 8 10:39pm
        Your comment here is totally unintelligible. What does a study by a couple of independent researchers in Edinburgh, Scotland have to do with "photos due to come out?!?" What photos? And, come out... more
        • but Don...Jim, Tue Aug 15 4:55am
          My reply it to speculatory paradoxical press release .
          • Re: but Don...algorithms, Tue Aug 15 9:34am
            Jim: "My reply it to speculatory paradoxical press release ." Uh...Jim, can you speak English please? Your commentary makes absolutely no sense whatsoever. Have you been drinking again?
            • Re: but Don...Jim, Tue Aug 15 10:15am
              you can't hear what you read.
              • Re: but Don...algorithms, Tue Aug 15 8:14pm
                I think you need to get back on your meds.
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