Pea-size clusters of human cells called brain organoids inspire both hope and fear. Experts are debating how scientists can ...

New research shows gut bacteria can directly influence how the brain develops and functions. When scientists transferred ...

Harvard and Google Research have released a startlingly deep dive into the human brain, mapping thousands of cells and millions of synapses in a poppy seed-sized sample of brain tissue. The effort ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. A cubic millimeter is, by all accounts, tiny. It’s barely ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Ten years ago, Dr ...