Nuclear waste potential for space propulsion and energy

Engineers are exploring the potential of using nuclear waste as a long-term energy source for space exploration. This approach aims to provide stable power for space probes, landers, and interplanetary platforms in environments where solar energy is unreliable due to fluctuating sunlight or distance from the sun.

Technically, the process involves capturing the heat and particles released during radioactive decay and converting them into electricity or thermal energy. While methods exist to convert radiation and heat into electricity without turbines, current technologies are often inefficient for large-scale terrestrial use. Consequently, these methods are primarily considered for specialized applications like space technology.

On Earth, repurposing nuclear waste for energy remains economically challenging, as the costs of extracting remaining energy often exceed the value of the output. Furthermore, processes intended to accelerate decay to release more energy can result in smaller volumes of material that emit significantly more intense radiation, requiring advanced shielding and handling protocols.