A new open-access 3D portal that allows users to explore human organs in unprecedented detail, from the whole organ to individual cells, has been launched by an international team led by UCL scientists. The Human Organ Atlas, described in a new paper in the journal Science Advances , brings together some of the most detailed images of 3D organs ever produced. It enables scientists, doctors, educators, students and the wider public to interactively “fly through” organs such as the brain, heart,