Google just created the most detailed image of a brain yet

Scientists have created the most detailed 3D map of an organism brain to date. The mesmerizing threads of blue, yellow, purple and green represent thousands of brain cells and millions of connections found inside the brain of a fruit fly.

This high-resolution map, known as a "connectome," only makes up one-third of a fruit fly's brain but includes a large region involved in learning, navigation, smell and vision. Scientists found over 4,000 different types of neurons, including those involved in the fly's circadian rhythm — or internal clock — that might help researchers learn a bit more about how the insect sleeps.

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