Scientists have unveiled the most intricate functional map of a mouse brain to date, revealing neural connections so complex they resemble the structure of a galaxy. Published in Nature on April 8, 2025,

Thanks to a mouse watching clips from “The Matrix,” scientists have created the largest functional map of a brain to date — a diagram of the wiring connecting 84,000 neurons as they fire

Information gathered in just one cubic millimeter of a rodent’s cerebral cortex will help unravel the complex neural networks behind cognition