How NASA and Microchip Are Revolutionizing Spaceflight Computing: A Step-by-Step Guide

Introduction

For decades, NASA has relied on radiation-hardened processors that date back to the Apollo era to power its spacecraft, rovers, and telescopes. But as missions grow more complex and longer, the need for greater computing power, autonomy, and resilience has become critical. The High-Performance Spaceflight Computing (HPSC) project, a public-private partnership between NASA and Microchip Technology Inc., delivers over 100 times the computing capability of current space processors while reducing cost and power consumption. This how-to guide breaks down the steps NASA and industry took to develop this next-generation system-on-chip (SoC), from identifying the need to deploying a versatile family of processors for deep-space and commercial missions.

What You Need

• Legacy radiation-hardened processors (e.g., from Apollo or Mars rovers) to understand baseline performance and limitations.
• Clear mission requirements for future deep-space, lunar, and low-Earth orbit satellites.
• Public-private partnership framework to combine NASA’s experience with industry’s commercial expertise and investment.
• Funding and resources for multi-year development, testing, and fabrication.
• Expert design team skilled in SoC architecture, radiation hardening, and advanced networking (Ethernet).
• Scalable manufacturing process to produce both radiation-hardened and radiation-tolerant versions.

Step-by-Step Guide

Step 1: Recognize the Need for Next-Generation Computing

Space computing began in the 1960s with the Apollo Guidance Computers, which were crucial for guidance, navigation, and control during the first Moon missions. For decades, radiation-hardened processors have been the backbone of NASA’s exploration, powering Mars rovers, orbiters, capsules, and space telescopes. However, these legacy processors are reaching their limits. Future missions—to the Moon, Mars, and beyond—will require greater autonomy, real-time decision-making, and the ability to process massive amounts of data onboard. The first step was acknowledging that existing technology could not meet these demands. NASA analyzed mission roadmaps and identified that computing power needed to increase by two orders of magnitude while maintaining reliability in harsh space environments.

Step 2: Forge a Public-Private Partnership

To accelerate development and leverage commercial innovation, NASA and Microchip Technology Inc. entered a public-private partnership. This arrangement combined NASA’s deep experience in spaceflight computing with Microchip’s expertise in semiconductor design and manufacturing. The partnership allowed both parties to share investment risk and pool resources. NASA provided mission requirements and testing facilities, while Microchip contributed design tools, fabrication capabilities, and market insights for commercial space applications. The collaboration was structured under a program that encouraged co-investment, ensuring that the resulting technology would benefit both government and private-sector missions.

Step 3: Design a Unified System-on-Chip Architecture

The core of the solution is a next-generation system-on-chip (SoC) that integrates computing, networking, and security into a single device. Instead of using separate chips for each function, the SoC reduces system cost, power consumption, and physical footprint. The architecture is scalable, meaning unused functions can be powered down to optimize energy efficiency for critical operations. The team designed the SoC to deliver over 100 times the computing capability of current space processors. Key design decisions included using advanced Ethernet for high-speed data transfer, incorporating a security controller, and enabling continuous system health monitoring. The result is a single chip that can adapt to a wide range of mission needs.

Step 4: Develop Radiation-Hardened and Radiation-Tolerant Variants

Recognizing that different missions have different tolerance to radiation, the project created a family of processors with multiple variants. The radiation-hardened version is built for geosynchronous, deep-space, and long-duration missions to the Moon, Mars, and beyond. It can operate in harsh radiation environments while supporting real-time autonomous tasks like driving rovers at high speeds or filtering scientific images. The radiation-tolerant version is tailored for the commercial space sector, providing fault tolerance and cybersecurity for low Earth orbit satellites. Both variants share the same core architecture but differ in packaging and testing rigor, allowing cost-effective scaling from government to commercial use.

Step 5: Integrate Advanced Ethernet Networking

To handle massive data flows, the HPSC technology uses advanced Ethernet to connect multiple sensors or cluster several chips together. This networking capability allows spacecraft to process enormous amounts of data onboard and make autonomous real-time decisions without waiting for commands from Earth. For example, a rover could analyze terrain and adjust its path instantly, or a telescope could filter out low-quality images before transmission. The Ethernet integration also simplifies system design by using a standard, widely supported protocol, reducing development time and cost.

Step 6: Implement Security and Continuous Health Monitoring

As missions become more autonomous and connected, cybersecurity is paramount. The HPSC processor includes an integrated security controller that protects against threats and ensures data integrity. Additionally, continuous system health monitoring tracks performance and detects anomalies in real time. This combination of security and monitoring ensures that complex operations—such as autonomous docking, scientific data processing, or navigation—remain safe and reliable. The design also allows for over-the-air updates and remote diagnostics, extending the operational life of spacecraft.

Tips for Success

• Prioritize scalability: The HPSC family includes distinct but compatible processors for different mission needs. When designing your own system, plan for a range of capabilities so you can reuse components across projects.
• Embrace standard interfaces: Using advanced Ethernet not only improves performance but also enables easier integration with existing systems and future upgrades.
• Balance performance with power: The scalable architecture allows unused functions to be turned off. Make sure your design can dynamically allocate resources to extend mission life.
• Test early and often: Radiation hardening and fault tolerance require rigorous testing in simulated space environments. Partner with experienced labs and use iterative development cycles.
• Leverage public-private partnerships: Combining government expertise with industry agility accelerates development and ensures commercial viability. Consider forming similar collaborations for your space computing projects.