Charles L. Bennett
Charles L. Bennett
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Charles L. Bennett

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Charles L. Bennett

Charles Leonard Bennett (born November 1956) is an American observational astrophysicist. He is a Bloomberg Distinguished Professor, the Alumni Centennial Professor of Physics and Astronomy and a Gilman Scholar at Johns Hopkins University. He is the Principal Investigator of NASA's Wilkinson Microwave Anisotropy Probe (WMAP).

Bennett received his B.S. from University of Maryland, College Park, in physics and astronomy cum laude with High Honors in astronomy, which is part of the University of Maryland College of Computer, Mathematical, and Natural Sciences.

He earned a Ph.D. in Physics from the Massachusetts Institute of Technology in 1984.

Bennett was at the Carnegie Institution of Washington's Department of Terrestrial Magnetism during the summers from 1976 to 1978.

Prior to 2005, Bennett was a Senior Scientist for Experimental Cosmology, Goddard Senior Fellow, and Infrared Astrophysics Branch Head at the NASA Goddard Space Flight Center.

Before leading WMAP,[when?] Bennett was the Deputy Principal Investigator for the Differential Microwave Radiometers (DMR) instrument on the Cosmic Background Explorer (COBE) mission that discovered the anisotropy of the cosmic microwave background radiation. Bennett led the effort to rebuild the radiometer front-end microwave components that succeeded in significantly enhancing the sensitivity of the DMR instrument. The Cosmic Background Explorer (COBE) Science Team also precisely measured the spectrum of the cosmic microwave background radiation.

Bennett is a Fellow of both the American Association for the Advancement of Science and the American Physical Society.

His National Academy of Sciences (NAS) membership citation states, "As leader of the Wilkinson Microwave Anisotropy Probe (WMAP) mission, Bennett has helped quantify, with unprecedented precision and accuracy, many key properties of the universe, including its age, the dark and baryonic matter content, the cosmological constant, and the Hubble constant." Membership is a great honor bestowed upon the most distinguished scholars in engineering and the sciences.

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