"More atom-powered" refers to something that generates energy from atoms, typically through the process of nuclear fission. Synonyms for this phrase can include "nuclear-powered," "atomic energy-driven," or "radioactive-fueled." Each of these phrases indicates that the energy source is derived from the splitting of atoms, which produces large amounts of energy compared to other sources. The significance of this type of energy is its potential to replace traditional energy sources that are reliant on fossil fuels. As the world seeks to reduce carbon emissions and combat climate change, alternative energy sources like atom-powered energy are becoming increasingly important.