Seeking to make the invisible visible, Professor Roman Stocker, postdoc Vicente Fernandez and former postdoc Orr Shapiro used video microscopy a to reveal the path of water as it flows around coral, movement caused by the oscillation of cilia on the coral’s surface. The resulting image, “Invisible Coral Flows,” is winner in the photography category of the 2013 International Science and Engineering Visualization Challenge, sponsored by the National Science Foundation and the American Association for the Advancement of Science, and appears on the cover of the Feb. 7 issue of Science. Read a news story.