With profound sadness we announce the sudden and unexpected passing of Dr. Xudong Fan on Tuesday Aug. 9. Xudong has been the physical sciences transmission electron microscope supervisor at the Center for Advanced Microscopy since Feb. 2001. He came to MSU from the Solid State Division of Oak Ridge National Laboratory. He was an excellent transmission electron microscopist and a vital part of our team at the Center for Advanced Microscopy. He will be greatly missed.