Engineers are working to build batteries that can operate for months or even years without maintenance in extreme environments such as deep oceans and outer space.

A new effort backed by the Defense Advanced Research Projects Agency is now pushing forward a technology that could make that possible.

The project focuses on radiovoltaics, a type of battery that converts nuclear radiation directly into electricity.

Unlike conventional batteries, these systems do not require recharging and can deliver long-term, steady power for remote applications.

To read more, click here.