I am highly skeptical about data centers in space, but radiators don't need to be unshaded. In fact, they benefit from the shade. This is also being done on the ISS.
The JWST operates at 2kw max. That's not enough for a single H200.
AI datacenters in space are a non-starter. Anyone arguing otherwise doesn't understand basic thermodynamics.
The whole concept is still insane though, fwiw.
This is precisely why my didactic example above uses a convex shape, a pyramid. This guarantees each surface absorbs or radiates energy without having to take into account self-obscuring by satellite shape.
A very high end desktop pulls more electricity than the whole JWST... Which is about the same as a hair dryer.
Now you need about 50x more for a rack and hundreds/thousands racks for a meaningful cluster. Shaded or not it's a shit load of radiators
https://azure.microsoft.com/en-us/blog/microsoft-azure-deliv...