Russell J. Hemley's research explores the behavior of materials under extreme conditions of pressure and temperature. He attended Wesleyan University (Chemistry B.A., 1977) and Harvard University (Chemistry M.A., 1980; Ph.D. 1983). After a post-doctoral fellowship at Harvard (1983-84), he joined the Geophysical Laboratory as a Carnegie Fellow (1984-86) and Research Associate (1986-87). He was a Staff Scientist from 1987-2016 and from 2007-2013, he served as Director of the Geophysical Laboratory. He is currently a Research Professor in the Department of Civil and Environmental Engineering at The George Washington University and a Research Physicist at Lawrence Livermore National Laboratory. He has been a visiting Professor at the Johns Hopkins University (1991-92) and at the Ecole Normale Superieure, Lyon (1996). He is the Director of the DOE/Carnegie Alliance Center (CDAC), a Center of Excellence funded by DOE/NNSA, and the Director of Energy Frontier Research in Extreme Environments (EFree), an Energy Frontier Research Center funded by DOE/SC/BES. He is also currently Chair of the JASON Advisory Group. He was elected to the National Academy of Sciences in 2001. He is the recipient of the 1990 Mineralogical Society of America Award, 2003 Hillebrand Medal, 2005 Balzan Prize, and 2009 Bridgman Award. He is a Fellow of the American Academy of Arts and Sciences (1997), American Geophysical Union (1997), and Mineralogical Society of America (1990), and is Honoris Causa Professor of the Russian Academy of Sciences (2009). He has published over 620 papers.