John Grotzinger

John Grotzinger serves as the Harold Brown Professor of Geology at the California Institute of Technology (Caltech), where he holds a distinguished faculty position within the geological sciences. He additionally contributes to institutional leadership as a member of the RSI Executive Committee.

His research profile centers on geological disciplines with strong emphasis on planetary applications, particularly Mars exploration and Earth history reconstruction. This encompasses specialized study of sedimentary processes (Sedimentology) and layered rock analysis (Stratigraphy), reflecting Caltech's leadership in planetary science research.

Professor Grotzinger maintains active academic engagement through his professorship and executive committee role, with correspondence facilitated via institutional email.