Anybody Who Thinks Orbital Data Centers are a Good Idea ~~Is Suffering from AI Psychosis, Experts Argue~~ Doesn't Understand Basic Physics
Two main problems with data centers. Power and cooling. In space the power is doable. The cooling is a major pain in the ass and always has been. There are only three ways to get rid of heat. Conduction, convection, and radiation. The first two don’t work because of the vacuum thing. The third is horribly inefficient. Just look at the ISS and the giant fins that only dumps about 70 kW of waste heat through radiator “wings” that weigh several tons. A single rack in a high density compute rack can generate 100kW by itself.
So yeah given the expensive and how inefficient it is, it’s a terrible idea.
Edit: I’m a system architect so dealing with data center heat is something I’m familiar with.
You're just too small minded to comprehend the grand vision of business genius™ Elon Musk!
And Bezos apparently…
These chucklefucks are just trying to get some sucker… er I mean investor to fund the whole thing so their respective space companies can do the job.
And after doing to some very cursorary research other issues like…
- Radiation and reliability - apparently cosmic radiation is a bitch
- Lifecycle costs - I should have thought about this one. It's not like when a drive dies in space you just drive down to the DC to replace it. And not mention we recycle out compute about every 5-6 years or so.
- Connection - somebody mention this already in the thread but yeah you ain't hanging a fiber cable to a satellite
There's also the very real problem of data transfer.
On land you just lay down another fiber optic cable and you can double your data transfer rate.
In space, you have to deal with cross talk and interference on a limited spectrum.
Free space laser communications are possible, but even then you are only talking about 10s of GB/s, and you cant add more lasers or receivers on a satellite already in orbit.
What if we run a really long tube down to earth to send water back and forth? You gotta think like Elon to be innovative.
iirc the power is not very doable, You'd need hundreds of times as many solar pannels as are on the ISS to power a single modest data centre.
Space being "cold" doesn't matter since vacuum INSULATES.
it's not even cold...! The matter that DOES exist in it is very hot plasma but it's just really thinly spread out.
This is what I’ve been tearing my hair out over any time this comes up. If you put a computer in space it will heat up until it achieves incandescence. Which is bad for the performance.
Orbital data centers are a good idea if one wants to get massive golden parachutes that siphon money from all the investor cash that the entirely u realistic promises brings in. They are a grift that will most likely benefit Musk in the same way all his other pie int he sky bullshit does.
Being technically terrible hasn't really stopped that from happening with his other bullshit projects.
Orbital data centers are the new "hyperloop"
It's literally just taking the piss out of idiotic investors. Data Centers, AI, space, new frontier, new markets. It checks all the boxes to get idiots excited to dump money into your tech company so people keep talking about it because talking about it is what gets results. Hopefully nobody is dumb enough to actually try it, it's an absolute scam.
I don't know how that even got past the brainfart stage. AFAIK nobody has actually demonstrated how that would really work.
- Despite SpaceX's advancements in regards to things like resutable rockets, shooting stuff into space is still prohibitively expensive.
- Server clusters are exceptionally heavy.
- Server clusters run hot, cooling is not a triviality considering you can't just rely on convection in space, so more mass for alternative solutions.
- Datacenters need regular maintenace.
- Logic boards won't do well with the radiation in space.
- Despite SpaceX's advancements in regards to things like sattelite internet, getting large datacenter level quantities of data from earth into space and back, and at low latency, is no triviality.
Not saying this won't ever be a thing. But not in the lifetime of anybody on earth right now I don't think.
People don't understand just how difficult it is to cool stuff in space. Half of the shit sticking out of the ISS that people think are solar panels are actually radiant cooling systems, and the ISS will generate WAY less heat per volume than a data center.
Yea honestly, orbital data centers are the dumbest shit I've heard during this bubble, and a huge indication of peak bubble hype.
The bubble is like this at this point:

You could put em on the moon with a heatpump into the ground.
The cost per pound to get them there is insane.
They are seriously old in 2 years.
They could put them in deserts here with closed loop cooling.
or... hear me out... Maybe we DON'T NEED THAT MUCH AI....
I had a conversation with a colleague of mine about this. He believed that Musk's decision to merge xAI and SpaceX was truly because of the potential of datacenters in space. I was unable to convince him that the logistics of this would be a nightmare and that this was just a way to make the Twitter buyout SpaceX's problem.
Are there actually people who think this is a good idea that are not in a position to make money off it?
Yes. All the retail investors in SpaceX that will be left to hold the bag.
That's a funny way to spell "our 401k"s.
They want to put them where normal people cannot damage them.
It's so expensive. Putting data centers in bunkers or caves is more reasonable. (There actually are data centers like this).
The "good idea" isn't the data centers but the stock pumping. You propose something insanely difficult and expensive (also hopelessly impractical and stupid in this case) and because it is so difficult and expensive you claim you can monopolize the market if you succeed which is the ultimate dream of every capitalist but you just need some insane amount of investment to get there. Then when the money runs out you go back and ask for more and exploit sunk cost fallacy. All the while valuations increasing. It is an amazing way for already rich scammers to get much, much richer than could happen in a sane economy and slurp up huge amounts of capital that otherwise could have gone into more productive endeavors.
Obviously in any well regulated economic system this shit would be subject to some proper oversight to protect the interests of the majority, particularly all the people whose pensions and livelihoods are at risk when this all goes to shit.
And yet the IPO of SpaceX was justified with the presumed future success of its space-based data center program.
Could you imagine being in orbit during an AI datacenter kessler collapse, and just getting smoked by an rtx 5070 travelling at mach fuck?
LOL LOL you CANNOT cool something like that in space. The entire concept is flawed.
For the cost of one orbital data centre, you could probably build 10 terrestrial data centres, bribe literally everyone involved in the construction to pretend that they built it in space, buy an island, fake your death, and spend the rest of your life off-grid.
It's such a hilariously dumb idea I hope the tech bros sink millions into it.
Lets make a data center we can't maintain, upgrade or access for any practical reason. Waiting for the suggestions to put them in geostationary orbits so that way their latency is even higher but going to struggle staying powered when in Earth's shadow. Or get put in the Earth-Sun L1 so they always have solar power but now have to have significant more radiators on top of even MORE latency beyond beyond the moon's orbit.
as much as underwater datacenter, extremely high cost despite the ocean being able to cooldown datacenters fast. also these large LLM have never overcome one major flaw, There is no profit generation in the industry.
If you sell rockets and satellites, then data centers in space sound like a perfect idea to increase demand with other people's money.
Orbital politicians, and billionaires are a hella cool idea though
Eliminating heat is like one of the hardest space problems 🦙
Not just experts but an 11-year-old with a mild interest in space could have explained to these techbros why this wouldn't work as an idea.
If and only if someone is insane enough to develop off-planet manufacturing with the bulk of the raw materials originating from somewhere in deep space, e.g. asteroid mining, putting data centers in space might be useful for problems that demand intensive compute and can work with extreme latency.
Then again that's like saying inventing the airplane would have been a good strategy for Neanderthals to find better firewood.
I've been working on IT for quite a while now and the only certain thing on this business is that hardware breaks down. All of it. Only questions are 'when' and 'how'. I'm pretty sure you can't get NBD support to the orbit. And I'd guess that shaking the shit out of the hardware during launch won't really help.
And that's of course just a minor detail, the whole idea is so stupid on a very fundamental level that I don't know why it's even a news worthy.
It makes sense if we have a space elevator and also invert the way most of the physics of data centers work.
Technology
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related news or articles.
- Be excellent to each other!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, this includes using AI responses and summaries. To ask if your bot can be added please contact a mod.
- Check for duplicates before posting, duplicates may be removed
- Accounts 7 days and younger will have their posts automatically removed.