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Stellar Nuclear

Modular radioisotope power systems for satellites

Sector

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Satellites

Product

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Nuclear energy powered systems

INTRODUCTION

Stellar Nuclear is a Czech startup advancing nuclear technologies for space applications. We focus on microreactors, nuclear propulsion, and modular radioisotope power systems using recycled medical and industrial isotopes. Our innovative processes transform radioactive waste into valuable energy sources, enabling safe and sustainable long-duration missions for the ESA and the global space community.

UNIQUE SELLING POINTS

  • Advanced space nuclear system design and analysis
  • Modular radioisotope power sources from recycled isotopes
  • In-house materials development, prototyping, and qualification
  • End-to-end expertise in nuclear safety, TID, and PRA analyses
  • EU-based innovative solutions for long-term deep-space and surface missions

Our partners