How to map the brain

It’s April 2019 at the Allen Institute for Brain Science in Seattle, Washington. In a room containing five transmission electron microscopes, three shiny party balloons are bobbing around. The balloons are to celebrate the institute’s researchers reaching the latest milestone in an effort to map each of the 100,000 neurons and the one billion connections, or synapses, between them in a cubic millimetre of mouse brain — a sample that’s roughly the size of a grain of sand.
Read more: https://www.nature.com/articles/d41586-019-02208-0?source=Snapzu