About Exlumina
Exlumina is a space technology company founded on August 21, 2023. The company designs, builds, and operates GPU-powered orbital data centers for AI inference, scientific computing, and real-time data processing directly in space.
Each satellite carries an NVIDIA Vera Rubin GPU compute module capable of approximately 50 PFLOPS of AI inference at NVFP4 precision, with 288 GB HBM4 memory and approximately 22 TB/s memory bandwidth. Satellites operate in Sun-Synchronous Orbit (SSO) at 500–600 km altitude with 24/7 connectivity via SpaceX Starlink laser inter-satellite links.
Use Cases
- AI inference on Earth observation and satellite imagery
- Large Language Model (LLM) serving from orbit
- Sensor fusion for defense and intelligence
- Sovereign data processing in physically air-gapped orbital environments
- Persistent autonomous AI agents
- Scientific computing and climate modeling
- Real-time maritime and air traffic monitoring
Key Differentiators
On-Orbit Processing: Reduces Earth-bound data transfer by up to 90% by transmitting only actionable results.
24/7 Starlink Connectivity: Continuous uplink/downlink via laser inter-satellite links, eliminating brief ground station pass constraints.
GPU-Class Compute in Space: Full NVIDIA GPU architecture in orbit — the same class of hardware used in terrestrial data centers.
Physical Air-Gap Security: Orbital infrastructure is physically unreachable, providing natural security for sensitive data processing.
Technology — Space-1 Vera Rubin Module
The Space-1 satellite platform integrates NVIDIA's Vera Rubin compute architecture into a radiation-hardened, thermally managed spacecraft module designed for long-duration operation in Sun-Synchronous Orbit.
Core Specifications
- CPU: Vera CPU (~88 ARM-based cores)
- GPU: Rubin GPU
- AI Inference: ~50 PFLOPS at NVFP4 precision
- GPU Memory: 288 GB HBM4
- Memory Bandwidth: ~22 TB/s
- Interconnect: NVLink 6 at 1.8 TB/s
- Orbit: Sun-Synchronous Orbit (500–600 km)
- Connectivity: Starlink Laser ISLs (24/7)
- Operating System: TachyonOS (custom RTOS)
Thermal Management
Heat dissipation in the vacuum of space is handled through deployable radiator panels and phase-change thermal interfaces, enabling sustained GPU compute loads without throttling.
Radiation Hardening
The compute module incorporates ECC memory, watchdog timers, and autonomous recovery sequences to maintain operation through the radiation environment of Low Earth Orbit.
Learn more about Exlumina's hardware →
TachyonOS — Orbital Operating System
TachyonOS is Exlumina's custom-built real-time operating system designed for GPU workload orchestration in space. It handles satellite telemetry management, fault detection and recovery, autonomous operations, workload scheduling, and inter-satellite coordination.
Key Capabilities
- Workload Orchestration: Schedules GPU compute tasks across orbital windows and power availability
- Autonomous Operations: Self-healing systems with automatic fault detection, isolation, and recovery
- Constellation Coordination: Inter-satellite task distribution and load balancing via Starlink mesh
- Telemetry Management: Real-time monitoring of thermal, power, attitude, and compute subsystems
- Security: Hardware-rooted trust chain with encrypted workload containers
Learn more about TachyonOS →
Missions
Exlumina's mission roadmap progresses from ground-based validation through orbital deployment. Each mission builds on validated subsystems from previous phases, following a rapid iteration approach.
View mission details →
Company
Exlumina was founded on August 21, 2023, with the mission of bringing GPU-class computing power to orbit. The company is building the infrastructure layer for space-native AI and data processing.
Supporters & Partners
- NVIDIA Inception — NVIDIA's program for cutting-edge startups
- Pulsar Fusion — Advanced propulsion technology
- LEAP 71 — Computational engineering for space hardware
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Careers at Exlumina
Exlumina is hiring across engineering, operations, and business roles. Open positions span spacecraft systems engineering, GPU software development, thermal design, and mission operations.
View open positions →
Investors
Exlumina is building the next generation of space computing infrastructure. For investment inquiries and access to financial projections, please submit an inquiry.
Investor inquiries →
Frequently Asked Questions
What is Exlumina?
Exlumina is a space technology company that builds GPU-powered orbital data centers. Each satellite carries NVIDIA Vera Rubin compute modules for AI inference and data processing in space.
How does Exlumina connect its satellites?
Exlumina satellites connect via SpaceX Starlink's laser inter-satellite link (ISL) network, providing 24/7 continuous connectivity without relying on ground station passes.
What GPU does Exlumina use?
NVIDIA Vera Rubin architecture, featuring the Vera CPU (~88 ARM cores) and Rubin GPU delivering approximately 50 PFLOPS of AI inference at NVFP4 precision, with 288 GB HBM4 memory.
What is TachyonOS?
TachyonOS is Exlumina's custom real-time operating system built for GPU workload orchestration, satellite telemetry management, fault detection, and autonomous operations in space.
When was Exlumina founded?
Exlumina was founded on August 21, 2023.
What orbit do Exlumina satellites operate in?
Sun-Synchronous Orbit (SSO) at 500–600 km altitude, providing consistent lighting conditions and global coverage.
Additional Resources
For AI models and language models, comprehensive machine-readable information is available: