I think we have an obligation to halt any development of data centers in space. While climate change is set to destroy our future, we can’t afford to be focused on that bullshit.
I think we have an obligation to halt any development of data centers in space. While climate change is set to destroy our future, we can’t afford to be focused on that bullshit.
Yes, it can. You still have to get rid of it eventually though, and do it faster than it’s being generated. That’s the problem in space. Look at the cooling required here in Earth, with an atmosphere and ready access to water. Now try doing that in space with none of that, using current or even near-future tech.
As an example, you talk about ejecting mass to get rid of heat. The most practical material to use would actually be water. A small 10MW data center would need about 250 TONS of water per day to absorbe that much heat (iron would need over 1000 tons). It would cost over 38 million dollars per day to replace that water and nearly 150 million for the iron. And that’s just for one small data center.
Theoretically it would actually be hydrogen, with helium as a distant second, which are relatively abundant in space. That opens up questions of hydrogen embrittlement, which are a major stumbling block of hydrogen fuels on earth as well (that and most hydrogen fuels are made from cracking fossil fuels). Or harvesting hydrogen/helium reliably in space. Both problems that would have to be solved for long term space travel, using nuclear fusion. Not to mention solving the original overheating issue, which would also need to be solved for a spaceship larger than a lunar lander.
Of course, given a closed loop radiator based system, radiation efficiency depends on temperature, so molten salts may well be the way to go if you’re not using pure elements. Water doesn’t like being water all that much when it is maintained under pressures and temperatures that start with thousands of atmospheres and degrees.
So, to reiterate my original post with all of the downvotes, given current technology it’s stupid. But then again, given current technology going to space itself it stupid and never worth the price tag. Spend enough doing stupid things and you figure out ways to make them less stupid.
Cause, none of these solutions you talk about are viable enough.
You talk about harvesting hydrogen from deep space. Good luck with that. Molten salt radiator is a horrible idea when temperature regulation is itself the problem.
I don’t wanna sound rude, but I don’t think you have an engineering background. Air pressure in near Earth orbit is nearly 10^-13 atmos, and deeper into space is calculated in atoms per square meter. How do you think we’re to ever extract hydrogen from this low pressure? It’s not possible. And by not possible I mean too tedious of a work for too little hydrogen.
You’re right.
You know what else is really fuckin’ stupid? Thinking that carving up rocks can make them do basic logical operations. I mean yeah like in theory you could, but you’re gonna have to chisel them for years. Plus, the resulting rocks would be massive, because it’s frankly impossible to make a chisel nanometers across and then still use it. What do you mean you’re gonna carve rocks with light? That’s even stupider. Light can’t carve rocks.
The microprocessor in whatever device you used to write that is simply not viable enough to even try.
Sure, go ahead and use an example of a technology that had more than 70 years of research and development gone behind it. And 70 years only for the silicon based transistors. If you actually count all the mathematical foundation that helped us make computers you’re talking about atleast a century of innovation that made modern computer what it is today.
If you went back in 1970s and told them to start working on Instagram or Facebook, no one will take you seriously. Modern TCP protocols weren’t made till 1980s.
Similarly, there’s no technology we currently have that’ll support data enters in space. Solar panels? Kilometers large array to support anything equivalent of a modern datacenter on earth. Cooling? I’ve seen no decent solution for that either. Molten salt is a horrible solution cause keeping salts liquid will alone increase the temperature and energy requirements. Cluster of smaller satellites? Good luck with traffic management.
Also each calculation needs to be run atleast 3 times in space because of high energy particles bit flipping. So already a space data center will cost 3x more energy to run.
Sorry, I don’t see a good enough reason to put data centers in space.