Biological ImagingThe biological sciences have benefitted tremendously from the influx of new imaging methods and tools. Our ability to visualize the inner dynamics of single cells, to understand their responses to their microenvironment and to disease, and to interpret the fundamental mechanisms of life itself, are all dependent on biological imaging. While most microscopic imaging techniques have relied on light and electrons, newer technologies and techniques using x-rays, sound, and other forms of electromagnetic radiation are being developed. Recent advances in super-resolution optical microscopy have enabled scientists and engineers to image smaller and smaller features in cells, beyond what is called the diffraction-limit of light. These and other advances will continue to drive discovery in many areas of biological science.