Robert M. Hazen's research focuses on aspects of the coevolving geosphere and biosphere, especially in the context of Earth's evolving mineralogy. His group investigates interactions among organic biomolecules and mineral surfaces, mineral-mediated chemistry in the context of origins of life, and the emergence of pre-biotic chemical complexity. In recent years he has introduced "mineral evolution," which is the study of Earth's changing near-surface mineralogy through deep time, and "mineral ecology," which focuses on statistical aspects of the diversity and distribution of minerals on terrestrial planets. He obtained a Ph.D. in mineralogy and crystallography from Harvard University in 1975, and a B.S. and S.M. in earth science from Massachusetts Institute for Technology in 1970 and 1971. For more information see: http://hazen.gl.ciw.edu.