After nearly ten years of collaboration, Google Research and the lab of Jeff Lichtman (Professor of Molecular and Cellular Biology at Harvard) have created the largest synaptic-resolution 3D reconstruction of a piece of human brain to date. The piece is only 1 mm³, but it contains 57,000 cells, 230 millimetres of blood vessels and 150 million synapses. That is a whopping 1,400 terabytes of data. This image is a combination of Lichtman’s electron microscopy images and AI algorithms that add colour and reconstruct the complex wiring. It shows six layers of excitatory neurons, colour-coded according to depth.