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Why HPSC Is a Big Deal for Space Exploration
Spacecraft have historically relied on processors that prioritize survivability over performance. Engineers have long accepted this trade-off because space is an unforgiving environment. Radiation, extreme temperatures, vibration, and multi-year missions demand reliability levels commercial processors cannot provide.
In May 2026, the National Aeronautics and Space Administration (NASA) announced its next-gen space processor and entered a testing phase at Jet Propulsion Laboratory (JPL) in Southern California. The processor is part of NASA’s High Performance Spaceflight Computing (HPSC) project, which NASA describes as a radiation-hardened, high-performance system intended to deliver a large increase in spacecraft computing capacity.
Built in partnership with Microchip Technology, HPSC combines multi-core computing, high-speed networking, fault tolerance, AI readiness, and security into a single platform intended for missions ranging from Earth orbit to deep space. The Microchip PIC64-HPSC promises to link NASA mission needs with commercial aerospace demand.
NASA expects HPSC to deliver more than a hundredfold improvement in performance per watt, compared with current space-qualified computing systems. In space, every milliwatt of power saved can be redirected toward instruments, communications, mobility systems, or other mission objectives.
However, HPSC is not only about speeding up spacecraft computers. It enables entirely new ways to explore the solar system.
In deep space, a processor error can jeopardize a mission worth billions of dollars. Energetic particles from the sun and cosmic radiation can flip bits in memory, corrupt calculations, or damage electronic components. To survive these conditions, spacecraft computers traditionally sacrifice performance in favor of resilience.
That approach has served missions well for decades, but it is becoming increasingly difficult to support today’s space exploration demands. Future missions require more onboard autonomy, more sophisticated science instruments, and faster decision-making.
HPSC was created to address exactly that challenge.
HPSC is a 64-bit multi-core system-on-chip (SoC) architecture designed specifically for spaceflight applications. It incorporates cache-coherent multi-core processing, radiation-hardened-by-design engineering, fault-tolerant operational capabilities, and integrated high-speed networking. Radiation-hardened and radiation-tolerant variants support different mission classes. Functions can be turned off or placed into lower-power modes when unused.
HPSC supports standard technologies from terrestrial computing environments. Among them are virtualization, artificial intelligence and machine learning workloads, PCIe connectivity, Compute Express Link (CXL), Ethernet networking, time-sensitive networking (TSN), and cryptographic capabilities.