Department of Earth, Environmental & Planetary Sciences

Ralph Milliken

Associate Professor
Lincoln Field
Room 302
Research Interests Planetary Geoscience, Earth History


My research focuses on exploring the geology of planetary surfaces and how we can use remote sensing methods (e.g., satellite and rover-based data) to address geologic problems. Specific interests include understanding the distribution and role of water in the evolution of our solar system, understanding the extent to which reflectance spectroscopy can be used to quantify mineral and volatile abundances in geologic materials, and investigating the sedimentary rock record of Mars. Researchers in my group integrate experiments, theory, and field/spacecraft data to address these questions. I am currently a science team member for the Mars Curiosity rover, and other projects include mapping water on the Moon, laboratory studies of meteorites, and field studies of potential Mars analogs.