I am a theoretical astrophysicist. My interests range from the search for planets around nearby stars to the shape of the universe.

Over the last few years, the WMAP Satellite has been the main focus of my research. WMAP was successfully launched on June 30, 2001. The results from WMAP are described in a series of papers. The WMAP 2003 paper is currently the 4th most cited paper in the entire SPIRES catalog . My next major CMB project is the Atacama Cosmology Telescope (ACT) and supporting observations through the Southern Cosmology Surveys, an international collaboration.

I am part of a group of scientists and engineers at Princeton University who are developing new technologies that should hopefully enable the direct imaging of earth-like planets.

I am part of the new Princeton Center for Theoretical Physics . In 2008/9, we are having a focused program on“Big Bang and Beyond.”I am also part of the new Institute for the Physics and Mathematics of the Universe (IPMU) .