John Grotzinger

Fletcher Jones Professor of Geology

DEPARTMENT OF GEOLOGICAL AND PLANETARY SCIENCES

DIVISION CHAIR

California Institute of Technology

MC 170-25

Pasadena, CA 91125

Phone: 626-395-6108

Email: grotz@gps.caltech.edu

I joined the faculty and division in 2005. My research is focused on the early environmental evolution of both Earth and Mars. By working to understand the chemical and physical conditions of the early oceans and atmosphere on our planet, my research group has been able to determine the influence of those conditions on microbial evolution and the emergence of animals.

I was the Project Scientist of the Mars Science Laboratory mission from 2006 until the end of 2014. I now continue my support of MSL on multiple instrument teams and as a strategic route planner. The Curiosity rover has been exploring the Red Planet since 2012, gaining insights into how water was involved in the early history of Mars and what its potential role might have been in supporting microbial habitability, had life ever originated there.