Tim Stearns holds the Frank Lee and Carol Hall Professorship at Stanford University and is Chair of the Department of Biology. He also holds appointments in the Department of Genetics, is a member of the Stanford Cancer Institute, and Bio-X, is a Faculty Fellow in Chem-H, and is an affiliated faculty member of the Center for International Security and Cooperation. He is a member of JASON, a national organization that advises the government on matters of science, technology and national security. He has also been an advisor to the National Academies of Science and the President's Council of Advisors on Science and Technology (PCAST). His research concerns the mechanism and regulation of cell division, the organization of signaling pathways within cells, and cell biology of fungal pathogens. Stearns was named an HHMI Professor in 2002, for his work in science education, and has taught international workshops in South Africa, Chile, Ghana, and Tanzania. He is a member of the NCSD Study Section at the NIH, and has served on the editorial boards of several journals.