This artistically rendered 3-D computed tomography (CT) scan shows the human lungs in the center with the viewer looking from the top. The rest of the body is digitally removed. The cushion on the CT table (left) and the blankets covering the subject (right) represent the cosmic clouds. Note the fine branches of the upper lobe bronchi within the lungs (orange). The airway is seen between the lungs. This artwork was created by Kai-hung Fung, a specialist in diagnostic radiology at Pamela Youde Nethersole Eastern Hospital, Hong Kong SAR, China. Fung received recognition for his work in 2007, when one of his images won first place in photography in the International Science and Engineering Visualization Challenge (SciVis), a competition created and sponsored by NSF and the journal Science. Credit: © Kai-hung Fung 2009, Pamela Youde Nethersole Eastern Hospital, Hong Kong