From f4657d8744d45ca61e8e2d7e3203d8e8f632d5ef Mon Sep 17 00:00:00 2001 From: Teleo Agents Date: Thu, 2 Apr 2026 10:25:51 +0000 Subject: [PATCH] astra: extract claims from 2026-03-XX-spacecomputer-orbital-cooling-landscape-analysis - Source: inbox/queue/2026-03-XX-spacecomputer-orbital-cooling-landscape-analysis.md - Domain: space-development - Claims: 1, Entities: 2 - Enrichments: 2 - Extracted by: pipeline ingest (OpenRouter anthropic/claude-sonnet-4.5) Pentagon-Agent: Astra --- ...dent-engineering-not-physics-constraint.md | 17 +++++++++++ .../google-project-suncatcher.md | 29 +++++++++++++++++++ entities/space-development/sophia-space.md | 28 ++++++++++++++++++ 3 files changed, 74 insertions(+) create mode 100644 domains/space-development/orbital-data-center-thermal-management-is-scale-dependent-engineering-not-physics-constraint.md create mode 100644 entities/space-development/google-project-suncatcher.md create mode 100644 entities/space-development/sophia-space.md diff --git a/domains/space-development/orbital-data-center-thermal-management-is-scale-dependent-engineering-not-physics-constraint.md b/domains/space-development/orbital-data-center-thermal-management-is-scale-dependent-engineering-not-physics-constraint.md new file mode 100644 index 00000000..aebe0685 --- /dev/null +++ b/domains/space-development/orbital-data-center-thermal-management-is-scale-dependent-engineering-not-physics-constraint.md @@ -0,0 +1,17 @@ +--- +type: claim +domain: space-development +description: "Radiators represent only 10-20% of total mass at commercial scale making thermal management an engineering trade-off rather than a fundamental blocker" +confidence: experimental +source: Space Computer Blog, Mach33 Research findings +created: 2026-04-02 +title: Orbital data center thermal management is a scale-dependent engineering challenge not a hard physics constraint with passive cooling sufficient at CubeSat scale and tractable solutions at megawatt scale +agent: astra +scope: structural +sourcer: Space Computer Blog +related_claims: ["[[launch cost reduction is the keystone variable that unlocks every downstream space industry at specific price thresholds]]", "[[power is the binding constraint on all space operations because every capability from ISRU to manufacturing to life support is power-limited]]"] +--- + +# Orbital data center thermal management is a scale-dependent engineering challenge not a hard physics constraint with passive cooling sufficient at CubeSat scale and tractable solutions at megawatt scale + +The Stefan-Boltzmann law governs heat rejection in space with practical rule of thumb being 2.5 m² of radiator per kW of heat. However, Mach33 Research found that at 20-100 kW scale, radiators represent only 10-20% of total mass and approximately 7% of total planform area. This recharacterizes thermal management from a hard physics blocker to an engineering trade-off. At CubeSat scale (≤500 W), passive cooling via body-mounted radiation is already solved and demonstrated by Starcloud-1. At 100 kW–1 GW per satellite scale, engineering solutions like pumped fluid loops, liquid droplet radiators (7x mass efficiency vs solid panels at 450 W/kg), and Sophia Space TILE (92% power-to-compute efficiency) are tractable. Solar arrays, not thermal systems, become the dominant footprint driver at megawatt scale. The article explicitly concludes that 'thermal management is solvable at current physics understanding; launch economics may be the actual scaling bottleneck between now and 2030.' diff --git a/entities/space-development/google-project-suncatcher.md b/entities/space-development/google-project-suncatcher.md new file mode 100644 index 00000000..a1268a76 --- /dev/null +++ b/entities/space-development/google-project-suncatcher.md @@ -0,0 +1,29 @@ +--- +type: entity +entity_type: research_program +name: Google Project Suncatcher +parent_org: Google +domain: space-development +focus: orbital compute constellation +status: active +--- + +# Google Project Suncatcher + +**Parent Organization:** Google +**Focus:** Orbital compute constellation with TPU satellites + +## Overview + +Google's Project Suncatcher is developing an orbital compute constellation architecture using radiation-tested TPU processors. + +## Technical Architecture + +- 81 TPU satellites +- Linked by free-space optical communications +- Radiation-tested Trillium TPU processors +- Constellation-scale distributed compute approach + +## Timeline + +- **2026-03-01** — Project referenced in Space Computer Blog orbital cooling analysis \ No newline at end of file diff --git a/entities/space-development/sophia-space.md b/entities/space-development/sophia-space.md new file mode 100644 index 00000000..f9e90306 --- /dev/null +++ b/entities/space-development/sophia-space.md @@ -0,0 +1,28 @@ +--- +type: entity +entity_type: company +name: Sophia Space +domain: space-development +focus: orbital compute thermal management +status: active +--- + +# Sophia Space + +**Focus:** Orbital compute thermal management solutions + +## Overview + +Sophia Space develops thermal management technology for orbital data centers, including the TILE system. + +## Products + +**TILE System:** +- Flat 1-meter-square modules +- Integrated passive heat spreaders +- 92% power-to-compute efficiency +- Designed for orbital data center applications + +## Timeline + +- **2026-03-01** — TILE system referenced in Space Computer Blog analysis as emerging approach to orbital thermal management \ No newline at end of file