City Labs has successfully launched BOHR, recognized as the world's first commercial nuclear-powered CubeSat, utilizing a betavoltaic battery powered by tritium decay. This milestone demonstrates the viability of compact, regulatory-approved nuclear micro-power systems for persistent, sunlight-independent satellite operations. While still a small-scale proof-of-concept compared to full reactors, it marks a significant step toward enabling long-duration missions and future lunar infrastructure.
Background
The development of reliable, long-lasting power sources is critical for deep space missions where solar energy is insufficient or intermittent. Commercial nuclear micro-power technologies are emerging as a solution to enable continuous operation for satellites and rovers without reliance on traditional batteries or solar panels.
- Source
- Ars Technica
- Published
- Jul 9, 2026 at 01:26 AM
- Score
- 7.0 / 10