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Charles L. Bennett is Bloomberg Distinguished Professor, Alumni Centennial Professor, and a Johns Hopkins University Gilman Scholar in the Department of Physics and Astronomy with a joint appointment at the Applied Physics Laboratory. His major field of research is in experimental cosmology. In particular, he has contributed to the establishment of a standard model of cosmology, and currently engaged in testing and extending that model.

Bennett led the Wilkinson Microwave Anisotropy Probe (WMAP) mission. WMAP was competitively selected in 1996 as a NASA Explorer mission, launched in June 2001, and its first scientific results were issued in February 2003. WMAP quantified the age, content, history, and other key properties of the universe with unprecedented accuracy and precision. This was recognized by Science magazine as the 2003 “Breakthrough of the Year.” The WMAP satellite ended its nine years of scientific observations in August 2010 and the full data analysis was published in 2013.

Previous to his work in WMAP, Bennett was the deputy P.I. of the Differential Microwave Radiometers (DMR) instrument and a member of the Science Team of the Cosmic Background Explorer (COBE) mission. The scientific results from this work included the first detection of variations across the sky of the temperature of the cosmic microwave background radiation. Currently, Bennett is working on a ground-based microwave telescope called the Cosmology Large Angular Scale Surveyor (CLASS) to make critical measurements of the history of the universe, including its first moments. He is also a member of the Euclid space mission consortium and the Subaru Prime Focus Spectrograph (PFS), aimed at measuring the properties of the dark universe: dark matter and dark energy.