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An Imminent Google Satellite Test Is Another Step Toward Data Centers in Space

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On Oct. 1, Google plans to hitch a ride on a SpaceX Transporter 18 rideshare flight, entrusting the mission with a test satellite it hopes will prove durable enough to start doing some light AI work while orbiting in space.

This isn’t exactly putting a data center in space — a much-hyped concept that AI entrepreneurs like Elon Musk have been touting over the last year —but it’s not not doing that. The satellite, which The New York Times reports is called “MWP” and which it describes as about the size of a refrigerator, won’t be running any huge medical research studies or beaming back streaming data. It will be low-powered, running off solar power, and designed just to test the concept of AI computation in space. Google is running the test in partnership with the satellite imaging company Planetand as part of Google’s Project Suncatcher initiative, which...

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Scaling MoE reinforcement learning on Amazon EKS with EFA and DeepEP with 40% more throughput | Amazon Web Services

When you post-train a Mixture-of-Experts (MoE) model with Reinforcement Learning from Human Feedback (RLHF) or Group Relative Policy Optimization (GRPO) at scale, three simultaneous challenges emerge. The first requires coordinating heterogeneous compute for rollout generation and policy training. Second, sustaining high-throughput communication across hundreds of accelerators. And third, dynamically orchestrating