Build the future of connectomics, one learning milestone at a time.

Brains compute through wiring — billions of cells connected by trillions of synapses — and for most of history that wiring was invisible. It no longer is. Electron microscopes can now photograph every wire in a piece of brain, and in 2025 Nature Methods named EM connectomics its Method of the Year: something that used to be impossible has quietly become an industry. The maps already exist for a worm, a fly, and cubic millimeters of mouse and human cortex; the next expedition is a whole mouse brain. Getting there is a relay with seven legs, and every part of this site teaches one of them:

1. Stop time. Chemicals freeze the tissue mid-thought; heavy-metal stains ink every wire's outline.
2. Slice. A diamond knife shaves it thousands of times thinner than a hair.
3. Image. Electron microscopes photograph every slice — about two million gigabytes per cubic millimeter.
4. Align. Software reassembles the slices into one seamless 3D volume.
5. Segment. AI colors in every neuron and finds every synapse.
6. Proofread. Humans fix the AI's mistakes and make the map true.
7. Discover. Scientists read the finished map and settle decades-old debates.