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Ars Technica

Miami-based City Labs achieves a first for commercial nuclear power in space

The proliferation of nuclear power in space got a little more real Tuesday with the launch of a small satellite developed by a Florida-based company specializing in nuclear micro-power technology. It's a long way from launching a bona fide nuclear reactor , a breakthrough that could help power a permanent Moon base and efficiently drive rockets throughout the Solar System . But you have to start somewhere. The satellite from Miami-based City Labs is named BOHR, short for Betavoltaic Orbital High-Reliability, and it launched on a SpaceX rideshare mission Tuesday alongside 80 other payloads. SpaceX's Falcon 9 rocket released the BOHR satellite into an orbit between 350 and 400 miles (nearly 600 km) in altitude. Read full article Comments

The proliferation of nuclear power in space got a little more real Tuesday with the launch of a small satellite developed by a Florida-based company specializing in nuclear micro-power technology.

It's a long way from launching a bona fide nuclear reactor , a breakthrough that could help power a permanent Moon base and efficiently drive rockets throughout the Solar System . But you have to start somewhere.

โ€œThe BOHR mission serves as a pathfinder for future nuclear-powered spacecraft.โ€

City Labs bills the BOHR mission as โ€œthe worldโ€™s first commercial nuclear-powered satellite and first nuclear CubeSat.โ€ CubeSats are modest in scale, and images released by City Labs suggest BOHR is built on a โ€œ1Uโ€ CubeSat platform, a cubical design measuring about the same size as a softball. BOHRโ€™s power source is a nuclear betavoltaic battery that generates electricity from the decay of tritium, a radioactive isotope of hydrogen.

โ€œThis is a historic step for commercial nuclear power in space,โ€ said Peter Cabauy, CEO of City Labs, in a statement. โ€œBOHR demonstrates that safe, compact, and regulatory-approved nuclear power systems are ready for routine commercial deployment. This capability enables persistent, always-on payload operations that are not constrained by sunlight or battery life.โ€

By Stephen Clark