• eleitl@lemm.ee
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    6 months ago

    Now show me that moss growing in perchlorate-salted soil at 6 mbar oxygen-free CO2, say, at Mars equator, and you might have a story.

  • intensely_human@lemm.ee
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    6 months ago

    Theorists predict that a particular moss can survive on Mars. Scientists await the experimental opportunity to test that prediction.

  • dactylotheca@suppo.fi
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    6 months ago

    We’ll probably fuck up our own planet badly enough that we’ll never actually get the chance to try terraforming Mars

    • Frozengyro@lemmy.world
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      6 months ago

      I heard sometime interesting regarding that recently, if we have the ability to terraform Mars, we’ll have the ability to hear on earth. So why not just fix it here where it’s millions of times easier than doing it on Mars.

      • dactylotheca@suppo.fi
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        6 months ago

        The solution for Earth isn’t going to be some pie-in-the-sky terraforming (which, I’d like to note, means “to make Earth-like”) project, but changing our psychotic economic system that depends on infinite growth and consistently elevates the worst of us into positions of power.

        That’s why I think we’ll never manage to unfuck ourselves. There’s just way too much power invested in keeping things the way they are

          • dactylotheca@suppo.fi
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            6 months ago

            I have nothing against the idea of terraforming Mars, I just don’t think terraforming is going to save us from ourselves.

            Like I said I just don’t believe we’ll ever get to that point – because we’ll fuck things up on the only currently livable planet so badly that I doubt mass-scale industrial society will survive long enough for terraforming Mars to become relevant.

            • unexposedhazard@discuss.tchncs.de
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              6 months ago

              If things ever work out on mars, it will be because its a hyper isolated, filtered microsociety that has nothing to do with “humanity” as we know it.

                • unexposedhazard@discuss.tchncs.de
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                  6 months ago

                  Well they are trying it here too of course, but obviously it will be easier when there is lots of empty space between you and the people that want to disturb your isolation. Humans be humans after all.

        • intensely_human@lemm.ee
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          6 months ago

          Two things:

          1. Who says capitalism depends on infinite growth? I often hear that criticism, but I don’t see where it’s coming from? I’ve not heard a capitalist say this, only anti-capitalists. What is it about capitalism that requires this growth?

          2. Can you name anything, anywhere, which exists without growing? Doesn’t even have to be alive, just asking for any phenomenon that just exists without growing.

          So I guess it’s one point expressed two ways: “Requiring constant growth” is not a valid criticism of our current economic system.

          • Cosmicomical@lemmy.world
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            6 months ago

            The modern take on stock investment is to not give dividends, so the only way for shareholders to make money is to have the company grow indefinitely.

            Obviously a capitalist won’t tell you that. My economy professor kept insisting that efficiency is always positive because it only concerns making a bigger cake, so there is more cake to be divided among the people involved, which he called surplus. In reality greater efficiency has a cost, and the cost is paid by people, while other people pockets the surplus. Fuck capitalists.

            • intensely_human@lemm.ee
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              6 months ago

              So making money in the stock market only works if the pie keeps on expanding? I think that’s a way to take advantage of the fact that our economy is expanding, but I don’t think that’s the definition of capitalism.

              • Cosmicomical@lemmy.world
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                6 months ago

                Your original point was that the pie doesn’t need to keep expanding, so you have been disproved I would say. Saying that the economy need to keep expanding is the same as saying the economy is based on infinite growth. If it stops expanding the stocks are not profitable anymore and the shareholders are going to vote to replace CEOs, so the CEOs have an incentive to make he companies grow at any cost.

                • intensely_human@lemm.ee
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                  6 months ago

                  You explained how one business relies on growth, in order to enrich its stockholders.

                  That is not the same as saying how the entire economy needs to expand.

                  Also it doesn’t differentiate it from anything else, since literally everything (I’m using the word phenomenon in its most literal form here — feel free to challenge me on any phenomenon) must grow or cease existing.

      • intensely_human@lemm.ee
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        6 months ago

        We won’t have the ability to terraform Mars until we try to terraform Mars.

        Perhaps Mars’s greatest contribution to our civilization wont be that it hosts cities or future life, but rather simply that it gave us a place to experiment so we could test things once before implementing them here.

      • threelonmusketeers@sh.itjust.works
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        6 months ago

        So why not just fix it here where it’s millions of times easier than doing it on Mars

        ¿Por qué no los dos?

        Also, I’m not entirely convinced that the problems are analogous. Mars needs to be warmed up, Earth needs to be cooled down. I think a more appropriate challenge would be terragorming Venus.

        • peopleproblems@lemmy.world
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          6 months ago

          If we can teraform Venus we can teraform the galaxy. The planet is inhospitable in every single way. We can’t even land spacecraft that last very long. If materials don’t melt from the heat and disintegrate from the atmosphere, then the volcanos ought to do the trick.

          It’s also harder to get to Venus than it is Mars.

            • KneeTitts@lemmy.world
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              6 months ago

              We just build a planet-sized sunshade to freeze the atmosphere

              Cost, 100 to 1000 trillion. We can barely fund NASA

              • spittingimage@lemmy.world
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                6 months ago

                Every argument I ever hear against thinking about things in the cool space future boils down to “we couldn’t do it this financial quarter so it’ll never be possible at all”.

                • Hackworth@lemmy.world
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                  6 months ago

                  I like to think about the spacefaring AI (or cyborgs, if we’re lucky) that will inevitably do this stuff in our stead, assuming we don’t strangle them in the cradle.

      • Makeitstop@lemmy.world
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        6 months ago

        Why not both?

        Although Mars is still a terrible candidate for terraforming. It’s at the outer edge of the goldilocks zone, and even if you can solve the temperature, radiation, and atmosphere issues to create a viable ecosystem, it’s still going to cause problems for humans thanks to the low gravity.

        Venus on the other hand could realistically function as a second earth if we clean up the atmosphere.

        • KneeTitts@lemmy.world
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          6 months ago

          Venus on the other hand could realistically function as a second earth if we clean up the atmosphere

          The cost would thousand of trillions at least, in fact it may cost more money to do something like that than currently exists. We can barely fund NASA.

          Frankly if humanity ever could get together politically to allocate enough resources to do anything like this, Im fairly sure a few greedy billionaires would stick most of those public funds in their pockets, and we’d end up with nothing at the end.

          Im sorry to say Im pretty pessimistic about us as a species getting anywhere. Hell we’re 80 year out from WW2 and still struggling to control fascism.

          • Makeitstop@lemmy.world
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            6 months ago

            No one’s trying to put terraforming Venus into next year’s budget. This is all theoretical talk about what would be possible to do some day.

            The cost of terraforming Venus would be large, but the benefits of having a second habitable planet are also quite large. Even ignoring the benefits of having more land and resources, there’s also the just the fact that being on two planets means we can potentially survive as a species if something happens to one of them.

            It would also have to be heavily automated, and only really becomes realistic once you have machines that are essentially self-sufficient at which point the concept of “cost” becomes a lot fuzzier. It would mean dedicating resources, but you aren’t paying an army of self-replicating robots.

            However, the sheer scale of the task means that the benefits would only be seen many generations later. It would require extreme efficiency and long term planning with little tolerance for error. The kind of people who would make such an investment are unlikely to just hand the money over to the shadiest billionaire they can find. And it would be difficult to keep a scam going if they need to show continual progress decade after decade.

            Maybe we’ll never see enough progress to overcome the kind of greed and short term thinking that would doom a huge, world-altering endeavor like this. But if that’s the case, it’s more likely that we’d just never try. All the more reason to keep pointing out what could be instead of just accepting the shittiness that we see today.

    • intensely_human@lemm.ee
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      6 months ago

      Terraforming Mars will be a first step to terraforming Earth. We’ll attempt to create a new biosphere and that will help us understand how ours works.

      • SpacetimeMachine@lemmy.world
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        6 months ago

        The tech needed to terraform mars is thousands of years away. There isn’t enough water or O2 on Mars to terraform it. As well as a whole host of other issues that we currently have no idea how to fix. (The lack of a magnetosphere is a huge one)

      • dactylotheca@suppo.fi
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        6 months ago

        I definitely don’t agree with that take.

        First of all, “terraforming” means “to make Earth-like”; climate mitigation is one thing, but if we let things here get bad enough that we have to start thinking about terraforming Terra, we’ve pretty thoroughly screwed the pooch at that point. Ending up with an Earth that is no longer Earth-like would mean that things have gone sideways so badly that I doubt we’d have the industrial capacity or resources to deal with it.

        Second, terraforming Mars involves a vastly different process than unfucking our climate and ecosystems. For example, Mars has a very thin atmosphere, which on top of being thin is mostly CO2 and doesn’t have more than trace amounts of oxygen. There’s also no magnetosphere to speak of because its “core dynamo” essentially died when its core cooled down and plate tectonics etc stopped being a thing, meaning that any atmosphere you do manage to generate is continuously getting blasted away by radiation.

        Terraforming Mars essentially means pumping more energy and gases into its climate system via whetever method, while the problem here on Earth is that we’ve pumped too much energy into the climate system and we’d have to somehow get it “out” again.

        • intensely_human@lemm.ee
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          6 months ago

          Terraforming Mars essentially means pumping more energy and gases into its climate system via whetever method, while the problem here on Earth is that we’ve pumped too much energy into the climate system and we’d have to somehow get it “out” again.

          So because one problem is too much X, and the other problem is too little X, those are distinct problems that don’t inform one another?

    • girthero@lemmy.world
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      6 months ago

      I’d rather beta test on Mars before we go down the path of unintended consequences on Earth.

  • thegr8goldfish@startrek.website
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    6 months ago

    Man, that title. They grew everything in sand. Regolith is filled with concentrated salts, and there’s no liquid water that we know of. At best, this experiment shows that if your inedible moss in a flower pot is briefly exposed to actual Martian conditions, it might survive when you bring it back inside.

  • ace_garp@lemmy.world
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    6 months ago

    So, which locations on Mars’ surface are the most hospitable for this moss? (considering radiation, temperature and water levels)

    Also, is a highly irradiated monoculture going to be a stable O2 producer, or is the species going to experience some mutated spinoffs?

    Probably a simpler way would be to just start-the-reactor.

    • Agent641@lemmy.world
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      6 months ago

      Probably the bottom of the valley marineres, where the air pressure is higher and there’s less wind erosion.

  • Audacious@sh.itjust.works
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    6 months ago

    Cool article but I think they need a huge NASA like chamber for emulating Mars surfaces conditions, with air, pressure, radiation, and soil conditions. Getting anything, even bacteria to live in those emulated conditions would be huge news.

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    6 months ago

    may help establish life on the red plane

    We should… ya know, make sure there is no life there first. Even a small planet is a big place, and we’ve looked in very few places. Also even if there is no life there’s still a lot Mars could tell us about what a pre-biotic Earth was like.

    I just think we need to examine the only other terrestrial planet in the system that won’t light you on fire fairly thoroughly before trying to terraform it into a Wish-dot-com version of Earth.

    • intensely_human@lemm.ee
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      6 months ago

      We’re going to have a very tight window for gathering pristine samples of pre-colonized Mars.

    • LesserAbe@lemmy.world
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      6 months ago

      I’m disappointed no one shares my enthusiasm for fucking up Mars. All these permaculture types insisting we only grow native plants

    • KneeTitts@lemmy.world
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      6 months ago

      Let’s fuck up Mars

      I wouldnt worry about that, we can barely fund NASA, we aint going anywhere anytime soon