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Mars has right ingredients for present-day microbial life: study

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Re: Mars has right ingredients for present-day microbial life: study

#81

As soon as the habitation of Mars picks up a little momentum, martians and Mars colonization will be demonized by the media. It will become a political debate that is fueled by the CIA and other entrenched interests. They will paint it as an ethical issue and focus on the immorality of disturbing the native habitat, or something similar to that. Mark my words.

Take your pills.

Re: Mars has right ingredients for present-day microbial life: study

#82

For almost half a century, scientists have been speculating about sub-surface life on mars. Why with existing technological progress can we not just get a yes or no answer about this.

Because determining a yes or no answer requires running tests and examinations of Martian subsurface soil samples on Earth. Part of Perseverance's mission is to take those soil samples and deposit them to be picked up and brought back to Earth on another later mission. https://mars.nasa.gov/mars2020/spacecraft/rover/sample-handl...

That seems highly unlikely to ever happen unfortunately. Any mission able to land and take off from the surface of Mars for a return trip is likely going to be able to take its own soil samples

Re: Mars has right ingredients for present-day microbial life: study

#83

As soon as the habitation of Mars picks up a little momentum, martians and Mars colonization will be demonized by the media. It will become a political debate that is fueled by the CIA and other entrenched interests. They will paint it as an ethical issue and focus on the immorality of disturbing the native habitat, or something similar to that. Mark my words.

The ethical issues with colonizing/developing Mars were already explored pretty deeply in Red/Blue Mars almost 30 years ago, so readers could mark Kim Stanley Robinson's words instead

Re: Mars has right ingredients for present-day microbial life: study

#84

Earlier quoted context omitted.

I've been curious about this recently actually. What are the downsides of "seeding" a plant with life to study how it evolves?

It becomes much more difficult to determine whether the planet contains indigenous life once you've introduced life from Earth.

i think it's safe to assume it doesn't. And a few plants in a tiny section of mars will hardly ruin the evidence anyway.

Re: Mars has right ingredients for present-day microbial life: study

#85

Earlier quoted context omitted.

It becomes much more difficult to determine whether the planet contains indigenous life once you've introduced life from Earth.

i think it's safe to assume it doesn't. And a few plants in a tiny section of mars will hardly ruin the evidence anyway.

What makes you think it’s safe to assume that Mars has no life?

Re: Mars has right ingredients for present-day microbial life: study

#86

Earlier quoted context omitted.

Because determining a yes or no answer requires running tests and examinations of Martian subsurface soil samples on Earth. Part of Perseverance's mission is to take those soil samples and deposit them to be picked up and brought back to Earth on another later mission. https://mars.nasa.gov/mars2020/spacecraft/rover/sample-handl...

That seems highly unlikely to ever happen unfortunately. Any mission able to land and take off from the surface of Mars for a return trip is likely going to be able to take its own soil samples

A later mission doesn't have to focus resources on scouting sites of potential interest, drilling, testing, analysis and sample storage. It can focus on picking up its cargo and getting back to Earth, which would be an amazing feat by itself.

Re: Mars has right ingredients for present-day microbial life: study

#87
post #73

Earlier quoted context omitted.

I'm also a fan of this idea. It seems far easier than trying to plant humans in giant bubbles with an Earthly ecosystem that just happen to be on the surface of Mars. As other commenters have noted, it's probably not very wise, but I imagine it would be the cheapest way to increase the chances of the continuation of life (as we know it).

But why would we want to continue life? Whenever I read something like that I feel life a sociopath but I don't really understand it. I'd care about the wellbeing of the people, not the continuation of the human species or, as here, of life itself.

I mean, I think it's kind of a natural reaction to "well if humanity disappears altogether, what was the point?", so we feel an urge to perpetuate humanity, in order to imbue our own existence with some sort of meaning.

Re: Mars has right ingredients for present-day microbial life: study

#88
post #54

Earlier quoted context omitted.

I've been curious about this recently actually. What are the downsides of "seeding" a plant with life to study how it evolves?

Evolution takes a long time. And there aren't many (any) environments that we've identified and can reach which are conducive to the sort of life we know about. Also it'd be a bit presumptuous for us to colonize a hospitable planet for our own experimentation. But it's an interesting question. In fiction, I can recommend Adrian Tchaikovsky's Children of Time , and sequel Children of Ruin .

Just finished reading the second, I really enjoyed them.

Re: Mars has right ingredients for present-day microbial life: study

#89
post #85

Earlier quoted context omitted.

i think it's safe to assume it doesn't. And a few plants in a tiny section of mars will hardly ruin the evidence anyway.

What makes you think it’s safe to assume that Mars has no life?

he posts to hacker news so he obviously has a high iq

Re: Mars has right ingredients for present-day microbial life: study

#90

Earlier quoted context omitted.

Assuming this is even in good faith, can you link any images or data of these supposed structures? I spend hours a day examining HiRISE/CTX imagery and have never seen anything like you're asserting.

Considering your background you might have a likely selection to what they could be referencing, but for other readers this is what I assume they are getting caught up on: https://en.wikipedia.org/wiki/Cydonia_(Mars)

https://en.wikipedia.org/wiki/Apophenia

and in the very wikipedia article you linked the high res images of that hill show no face/structure, almost like it just looked like that with shadows from a certain angle with a low res camera

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