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Datacenters in space are a terrible, horrible, no good idea.
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Deestan lemmy.world Deestan@lemmy.world
Joined: 2023-06-20
#52 · Quote Reply

No, this is fake news. I bet on Elon, he knows more than anybody on Earth, he already put men on Mars and created Hyperloop.

Not to mention that one time he saved all those trapped kids with his custom-built submarine.

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Simulation6 sopuli.xyz Simulation6@sopuli.xyz
Joined: 2023-06-29
#53 · Quote Reply

I envision a future so shitty that people are willing to physically destroy data centers in self-defense. Putting them in space is a really good way to combat that.

Have to destroy the rockets that are used to maintain them then and just wait.

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ripcord lemmy.world ripcord@lemmy.world
Joined: 2023-06-10
#54 · Quote Reply

Please tell me you aren't serious.

Dude stop

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HubertManne piefed.social HubertManne@piefed.social
Joined: 2025-03-13
#55 · Quote Reply

I was under the impressions cpu's were very sensitive to radiation. If we could mine and manufacture in space I could see this maybe.

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HubertManne piefed.social HubertManne@piefed.social
Joined: 2025-03-13
#56 · Quote Reply

Please tell me you aren't serious.

dude! how do you expect anyone to answer if you don't say surely you can't be?

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nabladabla sopuli.xyz nabladabla@sopuli.xyz
Joined: 2023-07-24
#57 · Quote Reply

Yeah the amount of heat a data center vs a satellite your going to super heat the space in that orbit over time. It they are geostationary then its even harder as the the data center doesn't move away from the heat.

Um, it doesn't make the data center in orbit thing make sense, but a geostationary satellite absolute moves at high speed and does not stay in the same place in space.

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toofpic lemmy.world toofpic@lemmy.world
Joined: 2023-06-20
#58 · Quote Reply

It's referencing a book.

Oh, thanks. I felt something is "unusual" about it.

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toofpic lemmy.world toofpic@lemmy.world
Joined: 2023-06-20
#59 · Quote Reply

Classic literature

Thanks!

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NotMyOldRedditName lemmy.world NotMyOldRedditName@lemmy.world
Joined: 2023-08-24
#60 · (edited) Quote Reply

Have to destroy the rockets that are used to maintain them then and just wait.

They aren't maintained. They're a constellation of small satellites in LEO like starlink that just go up and eventually come down.

If they're too far up latency would be too high

No one is repairing any of these starlink type dishes.

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brucethemoose lemmy.world brucethemoose@lemmy.world
Joined: 2024-03-22
#61 · Quote Reply

I was under the impressions cpu's were very sensitive to radiation. If we could mine and manufacture in space I could see this maybe.

It’s not speculation. Nvidia themselves have run experiments with GPUs in orbit, and the issue gets worse with smaller lithography (eg newer chips).

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brucethemoose lemmy.world brucethemoose@lemmy.world
Joined: 2024-03-22
#62 · (edited) Quote Reply

It doesn’t matter.

It’s a fantasy in billionaire's heads, a self-perpetuating meme, and no one is telling them no. So they’re going to fund it, whether it makes any sense or not.

Reality doesn’t really matter anymore.

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NotMyOldRedditName lemmy.world NotMyOldRedditName@lemmy.world
Joined: 2023-08-24
#63 · (edited) Quote Reply

Putting them in space also puts them technically outside of the legal jurisdiction of any country. I figure fElon probably assumes that means said servers can never be subpoenaed.

Subpoena the ground stations if that was true?

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brucethemoose lemmy.world brucethemoose@lemmy.world
Joined: 2024-03-22
#64 · (edited) Quote Reply

I'm always annoyed that people don't get that space isn't cold or hot, since heat is a property of matter, and that's exactly what a vacuum doesn't have. Your travel mug example is great. I'm going to start using it.

That’s because science literacy is pretty low.

And to be fair, the average person doesn’t need to understand vacuum thermodynamics. The issues is when a few of those “average people” are now billionaires making unilateral decisions, surrounded by yes men and feeds instead of experts informing them of reality.

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fallaciousBasis lemmy.world fallaciousBasis@lemmy.world
Joined: 2026-01-03
Banned
#65 · Quote Reply

My question is always how the hell are you going to cool them. Do you know hard it is to move heat in a vacuum?

A radiator. Next question?

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fallaciousBasis lemmy.world fallaciousBasis@lemmy.world
Joined: 2026-01-03
Banned
#66 · Quote Reply

The problems; plural; is that the person who popularized the idea of data centers in space has little to zero understanding of any of the space sciences and yet owns and directs one of the world's largest, and privately owned, aerospace companies with massive government contracts that splits its time with their own AI work.

We already have data centers in space.

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erin piefed.blahaj.zone erin@piefed.blahaj.zone
Joined: 2025-06-15
#67 · Quote Reply

Yeah the amount of heat a data center vs a satellite your going to super heat the space in that orbit over time. It they are geostationary then its even harder as the the data center doesn't move away from the heat.

Geostationary satellites are not standing still. They're orbiting the Earth at the same rate that it rotates "beneath" them.

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skulblaka sh.itjust.works skulblaka@sh.itjust.works
Joined: 2023-06-08
#68 · Quote Reply

Subpoena the ground stations if that was true?

Oh yeah it's totally a bullshit argument, it wouldn't hold water in any court. Hell if nothing else, the ground stations like you said, or the country whose airspace the center exists over, would be in jurisdiction.

But I do believe that Musk believes it's a get out of jail free card.

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BeardededSquidward lemmy.blahaj.zone BeardededSquidward@lemmy.blahaj.zone
Joined: 2025-12-04
#69 · Quote Reply

A radiator. Next question?

What's going to be performing convection to dissipate heat from the radiator in a manner to support the heat generated by an AI data center?

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fallaciousBasis lemmy.world fallaciousBasis@lemmy.world
Joined: 2026-01-03
Banned
#70 · Quote Reply

What's going to be performing convection to dissipate heat from the radiator in a manner to support the heat generated by an AI data center?

What part of radiator don't you understand?

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NotMyOldRedditName lemmy.world NotMyOldRedditName@lemmy.world
Joined: 2023-08-24
#71 · (edited) Quote Reply

The thing is spacex's whole falcon 9 architecture needs something to do. They very quickly cleared the backlog of satellites waiting to launch and now they're waiting for space start ups to materialize and want to launch things into space. The majority of falcon 9 launches now only launch starlink. It'll get even worse if they can make starship work, they'll have a huge capacity with nothing to...

If starship works (huge if) the markets it can open will be very different than the markets Falcon9 opened.

Something will need to develop around the new capabilities to use beyond their own use for starlink, but its going to be much easier for companies to come up with uses for it.

They make most of their money off starlink now, not ISS.

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BeardededSquidward lemmy.blahaj.zone BeardededSquidward@lemmy.blahaj.zone
Joined: 2025-12-04
#72 · Quote Reply

For anyone who doesn't know, this is because space is an absolutely terrible place to put computers. Getting power is actually the easiest problem to solve, and is still really hard, because building any kind of infrastructure in space is hard. Then you've got all that radiation you have to shield against because you're no longer protected by the Earth's atmosphere, and worst of all you've got ...

Tell me if I'm wrong, but with the shielding they have on the ISS doesn't it have issues that consumer grade computers they use last a few months due to various radiation and heat that they die? So an AI data center is going to be insane to protect long enough to make its components useful.

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fallaciousBasis lemmy.world fallaciousBasis@lemmy.world
Joined: 2026-01-03
Banned
#73 · Quote Reply

[removed by moderator]

They're called fins. Not panels.

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athatet lemmy.zip athatet@lemmy.zip
Joined: 2025-09-12
#74 · Quote Reply

We already have data centers in space.

Oh? Good. Problem solved then.

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BeardededSquidward lemmy.blahaj.zone BeardededSquidward@lemmy.blahaj.zone
Joined: 2025-12-04
#75 · Quote Reply

What part of radiator don't you understand?

Tell me you don't know how radiators actually work without telling me. They dissipate heat via convection through the air surrounding them or gasses in general. What does space lack a significant amount of?

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athatet lemmy.zip athatet@lemmy.zip
Joined: 2025-09-12
#76 · Quote Reply

What part of radiator don't you understand?

What you don’t understand is the size requirements those radiators would need to have to cool an entire data center.

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Pommes_für_dein_Balg feddit.org mech@feddit.org
Joined: 2025-10-06
#77 · Quote Reply

dude! how do you expect anyone to answer if you don't say surely you can't be?

I am serious, and don't call me dude!

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Pommes_für_dein_Balg feddit.org mech@feddit.org
Joined: 2025-10-06
#78 · (edited) Quote Reply

Tell me you don't know how radiators actually work without telling me. They dissipate heat via convection through the air surrounding them or gasses in general. What does space lack a significant amount of?

Radiators dissipate heat through...wait for it...
Radiation.

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Elvith Ma'for feddit.org elvith@feddit.org
Joined: 2024-06-21
#79 · Quote Reply

Oh yeah it's totally a bullshit argument, it wouldn't hold water in any court. Hell if nothing else, the ground stations like you said, or the country whose airspace the center exists over, would be in jurisdiction. But I do believe that Musk believes it's a get out of jail free card.

Agreed. The US can access/subpoena any data it wants from US companies, even if the servers they host the data on are in Europe or Asia or...

It doesn't matter where the servers and the data is located. It matters who posses (or controls the access) to it.

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elephantium lemmy.world elephantium@lemmy.world
Joined: 2023-07-01
#80 · Quote Reply

You need to think about how an infrared laser works. You're taking electricity, converting it into light and then focusing the light. So you'd need to take the heat from your GPUs, inefficiently convert it into electricity (a lot of it would remain as heat), then inefficiently convert electricity into light (much of the electricity would turn back into heat in this process) and then focus the l...

But in space its the only option you have

Hmm, this has me thinking about the stealth ships in The Expanse. The engineering needed to make it work makes me want to cry, but in principle you could run a Peltier cooler with a swappable heat sink.

To be clear, I don't think this is a viable option, but it's interesting to think about.

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Mihies programming.dev Mihies@programming.dev
Joined: 2024-06-16
#81 · Quote Reply

Not to mention that one time he saved all those trapped kids with his custom-built submarine.

Ah right, he also saved them from the "pedophile".

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elephantium lemmy.world elephantium@lemmy.world
Joined: 2023-07-01
#82 · Quote Reply

Was the title written by Trump?

Alexander, is that you?

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YiddishMcSquidish lemmy.today YiddishMcSquidish@lemmy.today
Joined: 2025-03-10
#83 · Quote Reply

In reply to an earlier post

Also the whole being a vacuum thing makes heat dissipation much more difficult.

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Lettuce eat lettuce lemmy.ml Lettuceeatlettuce@lemmy.ml
Joined: 2023-07-12
#84 · (edited) Quote Reply

Of course they are, same with undersea data centers (for different reasons).

But it doesn't matter. In the late-stage capitalism we find ourselves in, you don't need a real product, nor a promising prototype. You don't even need a good idea, you just need the promise that you'll come up with a good idea soon. That's enough to get the investors drooling, the shareholders hyped, and the gullible idiots engaged.

And you only have to maintain that long enough to pay yourself and your insiders some fat checks. Then when inevitably, reality barges in and people start to realize it was all bullshit and pipe dreams, you've already cashed out. If your PR team is good, the media and your sycophantic fans will praise you as a visionary who was simply, "ahead of their time." And you can go on to rip off more people.

It's basically Patreon scams but with billions of dollars.

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Valmond lemmy.dbzer0.com Valmond@lemmy.dbzer0.com
Joined: 2025-11-13
#85 · Quote Reply

What's going to be performing convection to dissipate heat from the radiator in a manner to support the heat generated by an AI data center?

Obnoxious as he seems to be, he's actually right, there will be no convection, but they'd radiate heat in a vacuum, by IR IIRC.

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Valmond lemmy.dbzer0.com Valmond@lemmy.dbzer0.com
Joined: 2025-11-13
#86 · Quote Reply

It's as stupid as solar roadways, a solution nobody asked for and we also already have way better solutions.

I mean why.

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NotMyOldRedditName lemmy.world NotMyOldRedditName@lemmy.world
Joined: 2023-08-24
#87 · (edited) Quote Reply

I was under the impressions cpu's were very sensitive to radiation. If we could mine and manufacture in space I could see this maybe.

They already run AMD chips on starlink, so they've figured out someway to shield them in most cases. Some solar flares at bad times (something about while raising orbits) has nuked some dishes before.

Its probably cheaper to account for some expected losses, than shield them perfectly.

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NotMyOldRedditName lemmy.world NotMyOldRedditName@lemmy.world
Joined: 2023-08-24
#88 · (edited) Quote Reply

In reply to an earlier post

Raditors. Starlink v3 can in theory already shed (edit 20) kW of heat. But they would need to figure out how to 5x that and keep things profitable.

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Fermion mander.xyz Fermion@mander.xyz
Joined: 2023-09-14
#89 · Quote Reply

In reply to an earlier post

The area of radiator needed directly corresponds to the amount of power harvested by the solar panels. It doesn't matter what the load is. So a compute frame with the same amount of solar panels as the space station would need approximately the same radiatot area as the ISS, unless you are bringing nuclear power into the mix.

I agree that space based datacenters are a bad idea, but the thermals really are not the gotcha people are making them out to be.

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HubertManne piefed.social HubertManne@piefed.social
Joined: 2025-03-13
#90 · Quote Reply

They already run AMD chips on starlink, so they've figured out someway to shield them in most cases. Some solar flares at bad times (something about while raising orbits) has nuked some dishes before. Its probably cheaper to account for some expected losses, than shield them perfectly.

Im pretty sure they are shielded as I think I have seen stuff like that for the electronics in the iss. Thing is that the eletronics in sattelites and the space station are pretty small relative to datacenters. The only benefit I can really see is maybe they can be solar powered which I guess if the panel acts as shielding and stays sun facing but all the extra expense of getting it up there. I just don't see it as practical. I mean technically it should either work or not basedo on cost as long as they don't wring out any subudies or soemthing.

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Doomsider lemmy.world Doomsider@lemmy.world
Joined: 2023-07-01
#91 · Quote Reply

It's as stupid as solar roadways, a solution nobody asked for and we also already have way better solutions. I mean why.

Solar roadways are the future! Driving on solar panels is the only way forward. Until all our roads are solar we will never be free people.

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NotMyOldRedditName lemmy.world NotMyOldRedditName@lemmy.world
Joined: 2023-08-24
#92 · (edited) Quote Reply

Im pretty sure they are shielded as I think I have seen stuff like that for the electronics in the iss. Thing is that the eletronics in sattelites and the space station are pretty small relative to datacenters. The only benefit I can really see is maybe they can be solar powered which I guess if the panel acts as shielding and stays sun facing but all the extra expense of getting it up there. I...

I think everyone is really confusing what these datacenters are.

They aren't these massive things. They're going to be a little bigger than v3 starlinks all working together in some manner. The best estiamte we have on size is v3 is 20kW of power, and these will be ~100kW

Edit: also power doesnt necessarily mean size. The GPUs will put off more heat per size i bet than whatever is in starlink, and even if it 5x'd the size of the computing area of the dish compared to starlink, that's still tiny. It's the radiator that will take up the space, not the datacenter portion.

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Doomsider lemmy.world Doomsider@lemmy.world
Joined: 2023-07-01
#93 · Quote Reply

By the time you launched and assembled one in orbit their hardware would already be outdated. Sounds like a great plan!

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lemmydividebyzero reddthat.com lemmydividebyzero@reddthat.com
Joined: 2024-08-28
#94 · Quote Reply

It doesn’t matter. It’s a fantasy in billionaire's heads, a self-perpetuating meme, and no one is telling them no. So they’re going to fund it, whether it makes any sense or not. Reality doesn’t really matter anymore.

I wish them the same success that the metaverse once had.

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Voroxpete sh.itjust.works Voroxpete@sh.itjust.works
Joined: 2023-07-07
#95 · (edited) Quote Reply

But in space its the only option you have Hmm, this has me thinking about the stealth ships in The Expanse. The engineering needed to make it work makes me want to cry, but in principle you could run a Peltier cooler with a swappable heat sink. To be clear, I don't think this is a viable option, but it's interesting to think about.

Basically the way you would make a stealth spaceship would be by focusing as much as possible on energy efficiency. At every juncture you would try to use as little power as possible, and use every bit of it as efficiently as possible, so that you're not remitting waste. That waste, in the form of heat, radio waves, etc, is what gets you spotted.

You could also run heatsinks temporarily for enhanced stealth as you suggest, then open up radiators to cool them - or eject them - once it's safe to do so.

(For the Elite: Dangerous players, yes, that game got it right.)

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Voroxpete sh.itjust.works Voroxpete@sh.itjust.works
Joined: 2023-07-07
#96 · Quote Reply

Tell me if I'm wrong, but with the shielding they have on the ISS doesn't it have issues that consumer grade computers they use last a few months due to various radiation and heat that they die? So an AI data center is going to be insane to protect long enough to make its components useful.

Yep. Radiation is deadly to computers, and without the atmosphere to protect you there is a LOT of radiation in space.

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XLE piefed.social XLE@piefed.social
Joined: 2025-06-23
Banned
#97 · Quote Reply

In reply to an earlier post

And you can only build so many of those radiator panels before you start running into congestion problems. You don't want them radiating onto each other.

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XLE piefed.social XLE@piefed.social
Joined: 2025-06-23
Banned
#98 · Quote Reply

In reply to an earlier post

Little Space James

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HubertManne piefed.social HubertManne@piefed.social
Joined: 2025-03-13
#99 · Quote Reply

I think everyone is really confusing what these datacenters are. They aren't these massive things. They're going to be a little bigger than v3 starlinks all working together in some manner. The best estiamte we have on size is v3 is 20kW of power, and these will be ~100kW Edit: also power doesnt necessarily mean size. The GPUs will put off more heat per size i bet than whatever is in starlink, ...

ugh so we are talking massive constellations. That is so much worse.

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NotMyOldRedditName lemmy.world NotMyOldRedditName@lemmy.world
Joined: 2023-08-24
#100 · Quote Reply

ugh so we are talking massive constellations. That is so much worse.

Ya its going to be massive, I imagine larger than starlink if these dreams come true.

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maplesaga lemmy.world maplesaga@lemmy.world
Joined: 2025-11-30
#101 · (edited) Quote Reply

Of course they are, same with undersea data centers (for different reasons). But it doesn't matter. In the late-stage capitalism we find ourselves in, you don't need a real product, nor a promising prototype. You don't even need a good idea, you just need the promise that you'll come up with a good idea soon. That's enough to get the investors drooling, the shareholders hyped, and the gullible ...

Late stage capitalism just means late stage fiat currency doesn't it, since all the money flooding in is debt and QE, and every dollar created and placed into the market is new cheap debt issuance?

Then we bail all the bad debt out when it fails, so the perverse incentive to issue bad debt is always there, because its not capitalist and nobody would backstop this mess if it was their own capital.

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