Timothy McKay Education: B.S., Temple University, 1986 Ph.D., University of Chicago, 1992. Positions Held: 2005- Arthur F. Thurnau Professor of Physics 2001- Associate Professor, Department of Physics, University of Michigan 1995-2001 Assistant Professor, Department of Physics, University of Michigan 1992-1995 Leon Lederman Fellow, Fermi National Accelerator Laboratory Research Field: Astrophysics Experiment Research Focus: Observational cosmology: galaxy clusters, large scale structure, and dark energy. Gamma-ray Bursts and other astrophysical transients. Projects: Sloan Digital Sky Survey (SDSS), Dark Energy Survey (DES), Robotic Optical Transient Search Experiment(ROTSE), and Supernova/Acceleration Probe (SNAP) Research Activities and Service: I did my PhD research at the University of Chicago on the Chicago Air Shower Array (a precursor to the Auger Experiment). After this, I moved to Fermilab as a Lederman Fellow, where I joined the newly formed Sloan Digital Sky Survey project. This project, in which Fermilab played an absolutely crucial role, has been extremely successful, impacting virtually every area of astrophysics. Since moving to Michigan in 1995, I have continued my work on the SDSS, participating in measurements of mass using both weak gravitational lensing and dynamical analyses. These measurements are designed to reveal the relationship between the luminous matter we observe and the dark matter which dominates the dynamics of the universe. During this time, I have also participated in the ROTSE experiment, building rapid-response automated telescopes now installed around the world to detect prompt optical emission from gamma-ray bursts. More recently, a substantial part of the Michigan high energy physics group is turning its attention to dark energy experiments, and we have collectively joined both the SNAP and Dark Energy Survey collaborations, both of which hold real promise for enhancing our understanding of this really fundamental mystery. A full CV is available at: http://www.physics.lsa.umich.edu/department/directory/bio.asp?ID=222