Matthew Hedman is a research associate in the Department of Astronomy at Cornell University. He was involved in efforts to detect the polarization of the cosmic microwave background as a graduate student at Princeton University, and as a research fellow in the Center for Cosmological Physics (now the Kavli Institute for Cosmological Physics) at the University of Chicago. He is now analyzing data sent by the Cassini spacecraft from Saturn. Address: 322 Space Sciences Building, Cornell University, Ithaca, NY 14853.