On Mar. 16, 2020, new insights into the architecture of the brain were revealed by scientists at the Wellcome Sanger Institute, the Wellcome-MRC Cambridge Stem Cell Institute and their collaborators. The researchers discovered that cells in the cerebral cortex of mice, called astrocytes, are more diverse than previously thought, with distinct layers of astrocytes across the cerebral cortex that provide the strongest evidence to date of their specialization across the brain.