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Data Centres In Space? Jeff Bezos Thinks It's Possible

Daniel Nenni

Admin
Staff member
The concept of space-based data centres is gaining traction among large tech companies, as the energy needs to maintain such operations on Earth are growing sharply.

Data Centres In Space? Jeff Bezos Thinks It's Possible


Amazon founder and executive chair Jeff Bezos said on Friday gigawatt-scale data centres will be built in space within the next 10 to 20 years, predicting they would eventually outperform Earth-based ones thanks to the abundance of uninterrupted solar energy.

The number of these enormous centres, which store computing infrastructure, is growing exponentially as the world increasingly uses artificial intelligence and cloud computing, driving a surge in demand for electricity and water to cool their servers.

"One of the things that's going to happen in the next – it's hard to know exactly when, it's 10 plus years, and I bet it's not more than 20 years – we're going to start building these giant gigawatt data centres in space," Bezos said during a fireside chat with Ferrari and Stellantis Chairman John Elkann at the Italian Tech Week in Turin.

The concept of space-based data centres is gaining traction among large tech companies, as the energy needs to maintain such operations on Earth are growing sharply.

"These giant training clusters, those will be better built in space, because we have solar power there, 24/7. There are no clouds and no rain, no weather," Bezos said. "We will be able to beat the cost of terrestrial data centres in space in the next couple of decades."

Bezos said the shift to orbital infrastructure is part of a broader trend of using space to improve life on Earth.

"It already has happened with weather satellites. It has already happened with communication satellites. The next step is going to be data centres and then other kinds of manufacturing," he said.

However, hosting data centres in space has its own challenges, including cumbersome maintenance, limited scope for upgrades and high costs of launching rockets as well as the risk of failed rocket launches.

 
I really would prefer this versus putting datacenters in the ocean. We abuse the ocean enough as it is. Either way as long as it is not in my backyard. It seems like edge computing (AI inferencing) would come first. I have read that Elon Musk and Starlink are working on it. A full on AI datacenter in space? Probably not in my or Elon's lifetime.
 
I really would prefer this versus putting datacenters in the ocean. We abuse the ocean enough as it is. Either way as long as it is not in my backyard. It seems like edge computing (AI inferencing) would come first. I have read that Elon Musk and Starlink are working on it. A full on AI datacenter in space? Probably not in my or Elon's lifetime.

But if a large space-based data center malfunctioned, it might fall into my backyard or even onto my roof!
 
Cooling datacenters in space will be really difficult unless we are running pipes through an asteroid or the moon..
Not necessarily -- since you need massive area solar panel arrays to power them, you can put radiant cooling arrays in their shadow.
 
Not necessarily -- since you need massive area solar panel arrays to power them, you can put radiant cooling arrays in their shadow.
That's a good idea, though you'd have to be in a solar orbit for that to be "cheaply" effective. (or use a lot of energy to maintain a precise rotation towards the sun - even high geostationary orbits or LeGrange orbits require adjustments over time).

The sheer scale of radiation for a Space DataCenter (SDC) is the main challenge IMO:
- A "small" Data Center can require 20 megawatts (MW) of power
- 20 MW would require >23,000 meters squared (m2) of radiators to function.. That's 5.7 acres of radiators

Sanity check for above:
- The ISS generates 84-120 kW of energy on average; 240 kW peak
- The ISS has 1,680 square feet of radiators to handle the average (plus some reserve)
- If we assume average ~ 100kW, the SDC would need 200x the area, or 336,000 square feet or 7.7 acres

And the Mass problem:
- ISS has 8 solar array wings, weighing 1,088 kg each; or ~ 8,704 kg (~20,000 lbs / 10 tons) of solar panels
- SDC would need 2,000 tons of solar panels, and presumably at least that amount of radiators
- 4,000 tons isn't totally insane, but it is approaching 10X the size of ISS, just for the solar panels and radiators.

Caclulator: https://space.geometrian.com/calcs/radiators.php

(Sorry for mixing units - this was a fun exercise for me)
 
That sure would solve the solar panel over capacity problem. Oh shoot, 95% of the panel are made in China!

Just trying to complete the thought exercise!
 
That's a good idea, though you'd have to be in a solar orbit for that to be "cheaply" effective. (or use a lot of energy to maintain a precise rotation towards the sun - even high geostationary orbits or LeGrange orbits require adjustments over time).

The sheer scale of radiation for a Space DataCenter (SDC) is the main challenge IMO:
- A "small" Data Center can require 20 megawatts (MW) of power
- 20 MW would require >23,000 meters squared (m2) of radiators to function.. That's 5.7 acres of radiators

Sanity check for above:
- The ISS generates 84-120 kW of energy on average; 240 kW peak
- The ISS has 1,680 square feet of radiators to handle the average (plus some reserve)
- If we assume average ~ 100kW, the SDC would need 200x the area, or 336,000 square feet or 7.7 acres

And the Mass problem:
- ISS has 8 solar array wings, weighing 1,088 kg each; or ~ 8,704 kg (~20,000 lbs / 10 tons) of solar panels
- SDC would need 2,000 tons of solar panels, and presumably at least that amount of radiators
- 4,000 tons isn't totally insane, but it is approaching 10X the size of ISS, just for the solar panels and radiators.

Caclulator: https://space.geometrian.com/calcs/radiators.php

(Sorry for mixing units - this was a fun exercise for me)
I don't see why they couldn't be in a close-to-polar orbit at right-angles to the sun so the panels always face towards it and the radiators always face away -- some orbital adjustments would be presumably be needed to keep facing the sun all year, but only small ones per day. You'd want a relatively low orbit to deal with the massive data bandwidth needed for both uplink and downlink to be useful -- a ring of them in the same orbit could use lasers for inter-DC links, like Starlink do now.

It's not that ludicrous given the plans for Starship flights -- if you can get 2000 tons of panels up there, you can get another 2000 tons of radiators.

Whether it makes economic sense is another issue, even though it removes the power/grid loading/cooling water problems of terrestrial data centres...
 
Jeffs an idiot. Heat needs to dissipate and space lacks an atmosphere to do that. solar radiation, micrometeorites, more space junk, increased costs to get up, lack of repairability, lack of maintenance, what to do with the junk when end of life and outdated. Financially it's stupid. Mechanically its stupid. Electrically stupid. Physically stupid. If something happens and it gets hit by a moving rock in space, are we going to have 4,000 tons crashing down to earth? Surely it wont all burn up in the atmosphere. How much metal can we spread across the upper atmosphere. Even musks low earth orbit StarLink is going to be a huge amount of aluminium that will repetitively come crashing back to earth burning up in the atmosphere. He wants 70,000 starlink satellites, with a life span of 5 years before they fall back down. Thats millions of pounds of aluminum in the atmosphere reflecting back light producing a cooling effect. We also start getting high levels of aluminium in the top soil, which is just horrible for everything, aluminium in your water tanks, steel, bronze, brass, heavy metals everywhere. fantastic... not. That's just starlink. Then we have Bezo's, China's one they want to do, etc, etc.
 
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