Atomic nuclei can store energy for thousands of years. Just 'illuminate' them with an X-ray laser—and they jump into an excited state, like a compressed spring. Such a quantum battery holds a million times more energy than a chemical one. Engineers are already figuring out how to embed them in space probes or underwater stations.
🎯 The tantalum-180 isomer stays charged longer than the universe has existed—an absolute record of stability.
🎬 The idea of extracting energy from nuclear isomers has popped up many times in science fiction, for instance as a source of super-powerful weapons.