John P. Grotzinger
On the C-SPAN Networks:
John P. Grotzinger is a Professor for the Geology of the California Institute of Technology with eight videos in the C-SPAN Video Library; the first appearance was a 2004 News Conference as a Scientist. The year with the most videos was 2012 with four videos as a Scientist. Most appearances with Joy Crisp (3), Edward Weiler (2), Michael C. Malin (2). Most common tag: Space.