Deep Brain Dive by National Geographic Society

This graphic-driven gatefold shows the sheer size and complexity of the brain. Researchers at Harvard and MIT provided National Geographic with 3-D models of a mouse brain at incredibly small scales. By drilling down from the 1 millimeter scale to 1 micron, we can see features such as glial cells and synaptic vesicles, which show the transfer of information between neurons. The complexity of this scale shows the challenge facing us as we attempt to map the brain: its sheer size is daunting.