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• ↓ Networking With A Side of Snark
• ↓ Solar So Good
• ↓ No Fuego
• ↓ The Deorbit Cycle
• ↓ Tom’s Take
• ↓ Spectrum for Rent
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"I’ll admit that I’m already shaking my head when I hear someone talking about the concept of data centers in space. You’re always going to hear the same three points trying to sell it. There is unlimited solar power, no land or water constraints, and cooling in space is free because it’s cold. Sounds good in theory but physics always wins. The costs associated with the drawbacks means that what you’re being sold is entirely different from what is being delivered."

"Lots of companies are jumping in to get into space. Starcloud, Axiom, Sophia Space, Google Project Suncatcher, and even the crazy million satellite promise from SpaceX want a piece of the action. However, read through the marketing and you’ll see that these companies aren’t building data centers in space. They’re really building disposable compute modules that just happen to be in space because calling them “data centers” is where you get your funding."

"The hints are there if you look closely. Coverage of India’s space aspirations talk about plans to deorbit failed modules and replace them, much like Starlink satellites or mobile phones. Other consultants have talked about servicing and unit refreshes as the real factor behind how this scales past a slick demo for investors."

"I will admit there is one area where this whole idea makes sense. Solar power in orbit is as abundant as can be. There’s no atmospheric attenuation. No need to worry about cloud days. And satellites don’t have to worry about night so they can get power constantly in the right orbit. Solar is also much less expensive than you might think, provided you don’t care about how long they last. Typical hardened triple junction cells that are used for things like the ISS cost about $50-$100 per watt. The cheaper commercial cell used by Starlink run about $.20-$.50 per watt. That’s a massive cost advantage. Those commercial cells are also more resistant to radiation damage than you might otherwise think. Real data from satellites show about 0.18% power loss per year due to degradation, which is less than 2% loss over a decade."

Key Topics & Focus Areas for networkingnerd.net:

Networking With A Side of Snark

Solar So Good

No Fuego

The Deorbit Cycle

Tom’s Take

Spectrum for Rent