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An in-space construction firm says it can help build massive data centers in orbit
(arstechnica.com)
this post was submitted on 30 Oct 2025
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well any actual engineer who isn't trying to sell them will readily tell you that a datacenter in space is a very bad idea.
They'd better not try to sell them to anyone who has access to an engineer, then. Just a single engineer will bring the whole scheme crashing down.
for starters, at the loads they're running at, they have literally hundreds of gpu failures a day. How do you propose doing that in space?
Include spares.
I hope they're reading this thread and taking notes, they probably didn't think of that.
and the infrastructure and robotics to replace them, of course.
Assuming 200 nvidia H100 failures a day (conservativo, reality is worse) that's an extra ~340kg of weight you'd need to launch per day. Which is an extra 120 tons yearly.
So, one Starship launch per year. Doesn't sound like a problem.
at least two, you can't stuff a rocket full of just gpus, you need something to actually dock and deliver the payload in space. So you need to launch at least 2 rockets (in a non-reusable configuration, so you need to pay for the whole rocket and the launch) to ship a bunch of gpus that are, at best, only 10% as fast as usual.
Okay, two then. It's still cheap.
Why do you say that? 120 tons is well within Block 4's projected capacity in reusable configuration. 240 tons is almost within it, even.