Jonathan Fortney is a Professor of Astronomy and Astrophysics at the University of California, Santa Cruz. He focuses on understanding the atmospheres, interiors, and composition of planets in our solar system and “exoplanets” around other stars. He was on the science team for NASA’s Kepler and Cassini Missions, and is currently on the Juno science team. He is the director of the Other Worlds Laboratory (OWL) at UC Santa Cruz, which hosts an exoplanet summer program each year. Jonathan’s research focuses on theory and modeling efforts, from giant planets down to terrestrial-mass worlds. He is on the Steering Committee for the Astro2020 Decadal Survey in Astronomy and Astrophysics. Before coming to UC Santa Cruz, Jonathan did a postdoc at NASA Ames, PhD at University of Arizona, and BS at Iowa State University.