Scientists mapped wiring in tiny mouse brain section

Scientists have mapped the activity and structure of 200,000 brain cells and their 523 million connections within a tiny section of a mouse brain. This study, published in *Nature*, involved over 100 scientists and generated 1.6 petabytes of data, a scale previously unachievable. This achievement surpasses a long-held belief that detailed mapping of such complexity was impossible. In 1979, a Nobel laureate predicted limitations to understanding brain anatomy. The current success paves the way for scientists to pursue the mapping of the entire mouse brain. The research builds upon 130 years of advancements in neuroscience and microscopy.