image: Tomography in 4-D. This image relates to an article that appeared in the June 25, 2010, issue of Science, published by AAAS. The study, by Dr. Oh-Hoon Kwon and Dr. Ahmed Zewail of California Institute of Technology in Pasadena, Calif., is titled, "4-D Electron Tomography." view more
Credit: Image courtesy of Ahmed Zewail