As a Professor of Physics at UC Berkeley, Richard Muller is currently working on many projects including dating lunar impacts, alternative glacial theories, Permian and Triassic extinctions, and searching for the hypothetical star Nemesis. He has been on the faculty at Berkeley since 1978. Originally trained in elementary particle physics, Muller has since moved to astrophysics and geophysics. 

Muller received his A.B. degree from Columbia University, and his Ph.D. at Berkeley. He is a fellow of the APS and of the AAAS, and his awards include the Texas Instruments Founders Prize, the NSF Alan T. Waterman Award, and a MacArthur Foundation Prize Fellowship.