🧠 Food for thought

Implications, context, and why it matters.

Space data centers need launch costs under $200/kg for a real business case

• Starcloud’s November satellite launch with an Nvidia H100 GPU marks a milestone, yet the case needs launch costs below $200/kg by mid-2030s to match terrestrial data centers per-kilowatt/year 12.
• Radiation may force hardware swaps every five to six years; thermal control requires radiators that add mass; inter-satellite links (connections between satellites) need tens of terabits per second with kilometer-scale or closer separations 12.
• Google’s Project Suncatcher (an internal study into space-based solar power for compute) found that panels in dawn-dusk sun-synchronous orbits (paths that keep satellites in near-constant sunlight) reach up to 8 times Earth’s output, while environmental trade-offs remain unclear because rocket launches and reentry produce pollutants that harm the ozone layer 12.

Ground stations can win orbital compute traffic with high-throughput backhaul

• AI tasks in orbit need high-throughput downlinks to clouds for data ingestion and model deployment, which opens room for ground-station-as-a-service networks (operators that provide shared satellite antennas with connectivity) such as KSAT (Kongsberg Satellite Services)’s 300+ antennas plus Dhruva Space (an India-based satellite company)’s Low Earth Orbit (LEO) tracking stations with S-band plus X-band radio capabilities 34.
• Telesat Lightspeed (Telesat’s planned LEO broadband constellation)’s 198-satellite LEO system offers gigabit-per-second speeds with Metro Ethernet Forum (MEF)-compliant interfaces, which lets ground stations add caching and Machine Learning Operations (MLOps) layers for space workloads 5. Providers that offer flexible bandwidth with low-latency links comparable to fiber enable hybrid compute across orbital and terrestrial infrastructure 5.