Paul Byrne (@ThePlanetaryGuy) is Assistant Professor of Planetary Science at North Carolina State University. He graduated with a Ph.D. in planetary geology from Trinity College Dublin in 2010 and participated in the MESSENGER mission as a postdoctoral fellow from 2011 to 2015 at the Carnegie Institution’s Department of Terrestrial Magnetism and the Lunar and Planetary Institute. Through a combination of remotely sensed data, physical and numerical modeling, and fieldwork at analog sites, his research focuses on the links between surface and interior processes on rocky and icy bodies in this solar System and beyond.