• Phoenixz@lemmy.ca
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    3 hours ago

    We can also launch Elmo into space and… Well, just forget about him, good riddance

    • FordBeeblebrox@lemmy.world
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      13 hours ago

      Still kinda blows my mind that a ship could accelerate to 1c and still not be able to use cooling fins, aircraft on earth use it as part of the design process

      • vinyl@lemmy.world
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        5 hours ago

        no worries about the temperature if the ship collides with a spec of spacedust :)

  • mefisdo_dot_info@lemmy.ca
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    19 hours ago

    Please, waste your money on something that needs several football fields big heat radiators per gigawatt. And cannot replace a hard drive without launching a technician into space.

    • vinyl@lemmy.world
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      5 hours ago

      kinda hard to do that when he invested so much time and money on blexas

    • FlexibleToast@lemmy.world
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      14 hours ago

      He doesn’t waste his money on his companies. He wastes tax payer funding on them. And when that started drying up, he took it to the stock market, convinced the exchange to fast track adding his company to being eligible for indexes, and then wasted our 401ks on it. He’s the ultimate con man.

      • stoly@lemmy.world
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        12 hours ago

        Yes but that only lasted weeks before collapsing. The end is coming, he is now trying to roll Twitter into spacex. It’s where his real riches are. When it eventually goes, so does his money

        • jfrnz@lemmy.world
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          17 hours ago

          One of the major environmental issues with launching mega-constellations is the environmental impact of their end-of-life deorbiting. As satellites reenter the atmosphere, they create aluminum oxide particulate that has a negative impact on the ozone layer.

          https://csl.noaa.gov/news/2025/427_0428.html

          • QuandaleDingle@lemmy.world
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            3 hours ago

            Because, of course they do. We always have to find ways to destroy our beautiful planet, as if a new Earth-like planet is just a skip away. 🫩

            • RFKJrsBrainworm@sh.itjust.works
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              2 hours ago

              Don’t you worry your poor little mind…the same folks destroying everything for their wealth are working on magic space ships to get us to earth 2, environmental bugaloo.

  • melsaskca@lemmy.ca
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    1 day ago

    He will do absolutely anything to not spend money on making the world he lives in a better place for all. So build a data center in space, just add a little apartment for yourself. Imagine looking down on the whole world! What power!

      • Uriel238 [all pronouns]@lemmy.blahaj.zone
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        13 hours ago

        I’m still waiting on how he’s going to manage CMEs during spaceflight.

        NASA timed its manned high-space missions to low-ebb periods, and there was still some risk of astronauts being baked to a crispy golden brown.

        Getting to mars is nine months, rather than a few days to the moon. CMEs be coming.

    • _stranger_@lemmy.world
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      1 day ago

      Is there somewhere we can donate to help make sure he fries in a coronal mess ejection lives the dream he’s always wanted?

      • Jason2357@lemmy.ca
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        15 hours ago

        With our current tech, a Mars mission pretty much 100% certain a one-way trip.

        Common elon, wheres your “move fast and break stuff” spirit? Lets get you suited up and on a rocket asap!

        • _stranger_@lemmy.world
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          15 hours ago

          Imagine how rapidly he could innovate on a constant acceleration vector out of the solar system!

  • grue@lemmy.world
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    2 days ago

    Just confirming what I’ve suspected: the point of the space datacenter thing is to keep the tools of oppression out of reach of angry mobs with torches and pitchforks.

    • empireOfLove2@lemmy.dbzer0.com
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      1 day ago

      Data center in space: untouchable

      Strictly necessary ground radio station to get any usable amount of data to and from said data center: still flammable

      • NotMyOldRedditName@lemmy.world
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        14 hours ago

        You could burn the ground stations down, but they’re all around the world, and all it takes is 1 to route the data to via the inter satellite laser links. You’d definitely add latency though taking out ground stations near you.

    • CorrectAlias@piefed.blahaj.zone
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      1 day ago

      Good thing the whole idea makes no sense, because repairs are impossible, you can only vent heat in infrared, you have to use expensive rockets to get them up there, and if they’re in LEO, they’ll fall back down to earth. Oh, and there’s more likelyhood that bits get flipped from all of the high energy particles up there.

      It’ll just make LLMs at scale even more infeasible.

      • NotMyOldRedditName@lemmy.world
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        14 hours ago

        Just FYI the rockets won’t be expensive if this plan ends up working.

        The only way this works beyond a tech demo, is if Starship works.

        If Starship works as planned (big if), the marginal cost to orbit will round down to the cost of fuel to launch over the lifetime of the rocket.

        Starship being fully reusable and working is going to be a mind boggling change in what access to space looks like and means.

        • Jason2357@lemmy.ca
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          15 hours ago

          The numbers didnt make sense for his tunnel thing either, but thats because he has never been an engineer but a hype-man who manipulates governments and markets for proffit.

        • NotMyOldRedditName@lemmy.world
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          14 hours ago

          The stats you listed are close to what 1 satellite would be if memory serves.

          But when he talks about sending terrawatts up there, he’s talking about having a moon base manufacturing them and launching them into orbit with a mass acceleator, so if we’re doing that… ramping up some solar/radiator manufacturing capacity isn’t as far fetched. Were fully into sci-fi land at that point.

      • Cocodapuf@lemmy.world
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        24 hours ago

        Yeah it’s tricky, given the pushback people are showing against datacenter construction, the issues around power, the vulnerability to attack… The space data center idea is starting to become more attractive to big tech over time, not less.

        Initially, everyone agreed that the numbers just don’t add up, there’s no way it could be economical. But then these terrestrial datacenters started getting a lot of bad press, everyone was concerned about the environmental impact, about the strain on the energy grid, about water usage. All of a sudden the space plan is seeming less crazy.

        and if they’re in LEO, they’ll fall back down to earth. Oh, and there’s more likelyhood that bits get flipped from all of the high energy particles up there.

        You’re thinking about the right things here, these are major issues! But, they can largely avoid serious problems here. Over 500 km, there’s a lot less drag and these aren’t just going to fall out of the sky. And under 1000 km the earth’s magnetic field still mostly protects them from high energy particles. They will still definitely be more exposed to high energy particles causing random bit flips, but it’s going to be in a totally manageable range.

        Giant AI datacenters will truly never be an efficient or wise use of resources, at least in my opinion, it’s just a largely stupid endeavor. But for better or worse, I expect we will be seeing some of these space based data centers in the near future. I guess we’ll just have to wait and see how economically sustainable they are…

        • CorrectAlias@piefed.blahaj.zone
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          23 hours ago

          Bad press doesn’t mean they can start losing even more money on space data centers (which are going to be incredibly inefficient and costly). They already do not make a profit, they’re all deep in the red.

          Drag is not the only problem (even though these would definitely be LEO, it is just even more expensive to not have them in LEO and it increases latency), nor are bit flips. The biggest issue will continue to be heat. If you haven’t been to a data center before, you may be surprised at how much heat they generate. I’ve only been to non-LLM data centers, and the heat in the warm aisles was unbearable.

          And that’s without the sun heating the exterior to incredible amounts. You cannot use contact to dump heat into space.

          You might also be surprised at how much e-waste data centers generate, especially LLM-geared data centers. They obliterate hardware, even with optimal cooling, and that hardware requires constant replacement. How are they going to manage that?

          Also, unless they use nuclear (which would drastically increase costs and add heat) they’re going to need gigantic solar arrays, much bigger than the IIS’ array.

      • phutatorius@lemmy.zip
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        1 day ago

        you can only vent heat in infrared

        Yeah, when you heat something, it emits infrared. Kind of the nature of hot things.

  • phutatorius@lemmy.zip
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    1 day ago

    An utterly unworkable, absurdly costly idea. I’m sure the same investor-lemmings who buy heavily into IPOs which have no viable business model will fall for this too.

    • shalafi@lemmy.world
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      20 hours ago

      Yep. We already have to deal with waste heat on the ISS, where is the monstrous heat from even a traditional DC to go?

      • NotMyOldRedditName@lemmy.world
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        14 hours ago

        There’s only a rack worth of compute on each satellite. There is nothing monstrous to deal with individually. The plans are to put up a very large quantity of these which will sum up to a large amount.

        That probably makes training on them less effective, and that would likely remain a land based thing, but for inference, any given person probably doesn’t need more than 1 rack of compute to themselves, and if they do, they’d probably be using something land based.

  • mrpxilo@lemmy.zip
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    1 day ago

    Has anyone actually tried a genuine rollout of data centers? Eg no lying about bringing in jobs, no cheating the energy grid, no building loud data centers near homes, don’t paint people as idiot luddites for opposing AI.

    I wonder how different sentiments about data centers would be if the people building them weren’t pathological. Probably not good, but having a punkass showman leading the way seems like self-sabotauge.

    • Jason2357@lemmy.ca
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      15 hours ago

      People have been building them normally for decades. They just used to be regular industrial buildings in industrial-zoned areas and required only minor grid upgrades.

      The scale of the new stuff makes it pathological. You cant be a good guy if your hyperscaler is the size of a small town and uses as much power and water as a state.

    • fruitycoder@sh.itjust.works
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      19 hours ago

      Kind of a double fuck in these rollouts at the moment. 1. Is the reckless build out. All the things you mentioned. 2. Is the explicit goal of using to shoot working class power, and create “algorythimc governace” and “ubiquitous policing”.

      Its a sinister combo

    • Auth@lemmy.world
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      23 hours ago

      In countries where the government is responsible and new data centers have to go through the regulatory consent process and address the public’s concerns around noise levels, water usage and grid prices there is still opposition from the public. I think* because of how big of an issue it is in America. America is a megaphone to a lot of the world so the issues spill over and the average person doesnt really seem to know what they’re mad about.

    • whotookkarl@lemmy.dbzer0.com
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      1 day ago

      This is how it was most of the time for decades before the LLM/transformer model FOMO speculative investment

  • 🌸𝓯𝓵𝓸𝔀𝓮𝓻🌸@sh.itjust.works
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    2 days ago

    Keeping one rack of GPU running needs basically all the uninhabited parts of the international space station. That’s roughly 100 kilowatt. That’s 10.000 ISS sized installations, man’s most expensive object ever made, for a gigawatt datacenter. I just hope he’s forced to bankroll this personally

    • TheFogan@programming.dev
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      2 days ago

      It’s stupid on so many levels… yeah first and foremost basically everything about space is terrible for data centers.

      What are the 3 things a data center needs.

      Power, cooling, good internet connection. Obviously power is complicated as heck, yeah solar is a bit more direct, but also hits total blackouts when it winds up in the shadow of things… and shielding etc… from all the radiation is a pain and a half, solar pannels will need to be drastically bigger and heavier than their earth counterparts, which is expensive as hell to send up there.

      but the harder part… cooling. People think of space as cold, but that’s innacurate… there’s no air to be cold… things stay at the temperature they are… if you have something constantly pumping out heat… it’s insanely difficult to get the heat to radiate out.

      • frosch@sh.itjust.works
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        1 day ago

        Just read a comment about exactly this a few days ago. Anyone working on space components know that a very hat problem to work on is how to keep things cool because, well - having the fucking sun shine on things most of the time directly without the ozone layer and air to dissipate heat in and way does make things go hot.

        Also, you forgot a very important thing a data center needs: people that work there. That is one of the reasons we currently build data centers so close to urban sprawls in Arizona instead of somewhere in the middle of Alaska or in polar regions. There must be personnel working onsite all the time.

      • Rakonat@lemmy.world
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        1 day ago

        It’s funny to me because the moon would be a much better choice, if latency wasn’t an issue. Don’t get me wrong, if your aim is uptime, reliability and ease of upgrades/use then terrestrial based is your only option.

        But if your goal was off Earth, the moon has a number of advantages that free floating in orbit lacks. You can place the servers themselves underground in lavatubes or excavated caverns as well as install heat-sinks (or even seal a cavern, pressurize it and use what ever gaseous medium for extra heat capacity and thermal transfer) then place a series of solar on the surface with battery support (remembering that lunar nights are 2 weeks long) to generate all your power needs, as well as take advantage of the moon’s tidally locked nature to have your transmission and receivers always pointed at the Earth, or relay satellites in orbit.

        Such a project could coincide with NASA or other agencies or enterprises looking to establish settlements on the moon for research or mining purposes, so you could have short or long term settlements with technicians on hand to troubleshoot any problems that arise or even get semi regular (every 18-24 months) deliveries of components for repairs and upgrades for your system, something that long term would be a lot simpler logistically and more stable than attempting a satellite or constellation of satellites any Earth orbit.

        The plan is nonsensical for a number of reasons, namely the cost and long term dedication, but it makes a hell of a lot more sense than trying to put an energy intensive project in orbit and hope the lowest bidder parts last more than 6 months.

        • Cocodapuf@lemmy.world
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          1 day ago

          I’m not sure the moon makes a lot of sense.

          I mean, the two weeks of darkness is the real killer.

          I mean look, let’s say our datacenter requires 100 kw of power. That means about an 800 square m solar array. If you need to store enough power to run the system through a two week night, you’ll need a lot of batteries and a much larger array. You’ll only be collecting power half the time, so the array needs to be twice as large. But there are about 30% losses in transferring energy to the battery, drain over time, and then transferring back, so some quick math says you now need somewhere around 230kw, for a 1800 square m solar array.

          Currently, an array large enough to generate 100kw weighs between 1-2 tons. If we’re optimistic and say 1 ton, that’s 2.25 tons for our equivalent moon array

          Now the batteries. The capacity needs to be enough to store 130kw over the course of two weeks. 130kw x 24hours x 14days = 43,680 kw hours of storage. Lithium ion batteries weigh about 5kg per kwh of storage. 43,680 kwh of storage would weigh 218 tons. And that’s just the base weight of the batteries, I didn’t factor in whatever structures or systems the batteries would need to be usable in space.

          Here’s where I point out that it costs about $5 mil per ton sent to orbit. It costs somewhere between $100 mil and $1 bil to send 1 ton to the moon. Personally, I think it’s a lot easier to send 1 ton to low earth orbit, than to send 220 tons all the way to the moon. I think the only way to make data centers on the moon make sense, would be if you’re already living and working on the moon in a functioning settlement.

          As crazy as orbital data centers are, if your counting in dollars, lunar data centers are literally 10,000 times crazier.

      • Cocodapuf@lemmy.world
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        1 day ago

        Well, you’re thinking about the right things for sure! Power, cooling, Internet connection, all super important.

        But as it turns out, terrestrial solar panels are actually heavier than space solar panels, like a lot heavier. Shielding against radiation is actually less of a challenge than shielding against weather and acorns. The ISS updated it’s solar array a while back and its new ones were deployed by rolling them out, they were a thin enough film to actually roll up for launch and then roll out once attached to the ISS.

        Also, these solar panels won’t have blackouts. With a sun synchronous orbit, these panels simply won’t be in shadow basically ever. The one exception would be during solar eclipses.

        As for cooling, you do probably need radiators with active cooling systems. Generally you need radiator panels at a ratio of about 1/5 of the area of your solar panels, but this can vary with different designs. But that’s a linear relationship, cooling doesn’t become unfeasible at some point it just remains a design concern. The more power you generate, the more radiators you need. It’s just part of the cost of power and it scales linearly with the area of your solar array.

      • Kactus@piefed.world
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        1 day ago

        People forget that black body radiation is to the 4th power of the temperature difference. I assure you if your server cluster is at 1000 Kelvin cooling will be the least of your worries

  • Rakonat@lemmy.world
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    Good luck dumbfuck, tell me how easy it is to service, maintain and repair them when you inevitably overheat them, or don’t have the proper shielding so components burn out or degrade beyond useful parameters.

    Mars is all red, maybe you want to restart those plans and take your flock of sheeple with you as soon as possible?

    • Corkyskog@sh.itjust.works
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      1 day ago

      I read somewhere recently that they found out Martian soil (regolith) is chalk full (0.5 to 1%) of pechlorates. So I don’t know why this Martian terraform thing is even still talked about. The dust is literally toxic, any food you grow there would also be full of pechlorates as the roots will suck them up with their nitrate transport systems.

    • Joe@discuss.tchncs.de
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      As much as I dislike Musk, he probably could tell you in detail. His company is not the only one looking into compute in space, either.

      • dustyData@lemmy.world
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        1 day ago

        Nah, it’s a grift. The Melon’s pitch straight up includes factually wrong physics claims. It is not easier, nor cheaper, to have data centers in space.

        Actual scientists have done the math. Even disregarding maintenance for data corruption from radiation, and assuming the best near future tech. It would take 10 times an ISS equivalent structure to power and cool down a single server rack.

        Musk promised he wants to get 1 Tera Watt of LLM processing power in orbit. That’s 10,000 times an ISS of solar panels and IR radiators for cooling. The enterprise is completely unrealistic.

        The whole thing is just a con to get governments to funnel more money into his companies without having to deliver any actual results.

      • VeloRama@feddit.org
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        there’s no convection cooling in space, because vacuum is a very good thermal insulator. compute in space does not scale because of that alone. you would need massive (F/M)IR radiator arrays to get rid of the thermal energy.

      • Wildmimic@anarchist.nexus
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        1 day ago

        And every single one of them is a grifter. It would be a lot easier to establish a permanent moon settlement (which can then build datacenters if they want to) than to provide meaningful amounts of compute in orbit.