On Tuesday, City Labs, a Miami-based company, launched the BOHR satellite, marking the world's first commercial nuclear-powered satellite. The launch occurred as part of a SpaceX rideshare mission, deploying the satellite into orbit between 350 and 400 miles above Earth. This groundbreaking achievement represents a significant step towards utilizing nuclear power in space exploration.
Details of the BOHR Satellite Launch
The BOHR satellite, which stands for Betavoltaic Orbital High-Reliability, is built on a "1U" CubeSat platform, similar in size to a softball. City Labs describes this mission as a pioneering effort in commercial nuclear power, showcasing the potential for safe and reliable energy sources in space.
According to Peter Cabauy, CEO of City Labs, "This is a historic step for commercial nuclear power in space. BOHR demonstrates that safe, compact, and regulatory-approved nuclear power systems are ready for routine commercial deployment." The satellite's power source is a nuclear betavoltaic battery that generates electricity from the decay of tritium, a radioactive hydrogen isotope.
Applications and Future Potential of Nuclear Power in Space
City Labs aims to utilize its experimental NanoTritium power generator to provide electricity for the BOHR CubeSat's payload. While the satellite uses conventional solar power for its regular operations, the betavoltaic technology is ideal for low-power applications, including remote terrestrial sensors and secure communications instrumentation.
The company is also exploring the use of its technology for implantable medical devices. In collaboration with NASA, City Labs is investigating the potential for nuclear tritium power sources to support small sensors in permanently shadowed lunar craters to scout for resources like water ice.
Regulatory Milestones and Safety of Nuclear Launches
Until now, nuclear-powered spacecraft have primarily been operated by governmental entities like NASA and the US military. The BOHR mission is notable as it is the first commercial nuclear mission to successfully navigate the Federal Aviation Administration (FAA)'s nuclear launch approval process. The FAA authorized the launch in September, facilitated by the small amount of radioactive material carried by BOHR, which is less toxic than other nuclear fuels.
The Nuclear Regulatory Commission states, "Tritium emits a weak form of radiation, a low-energy beta particle similar to an electron. The tritium radiation does not travel very far in air and cannot penetrate the skin." This safety profile contributed to the successful launch of the BOHR satellite.
City Labs emphasizes that while the BOHR mission is a small-scale test, it serves as a pathfinder for future nuclear-powered spacecraft, supporting both civil and national security missions.
🤖 This article was rewritten by Feed and Figures' editorial AI from a report originally published by Ars Technica. Facts and quotes are preserved from the original; the rewrite focuses on clarity and structure. For the unedited original, see the source link below.
