I conduct research in computational astrophysics and direct the public education program in Caltech Astronomy. My research focuses on the computational modeling of galaxies and their environments, following their formation and evolution over cosmic timescales. I have acted as scientific advisor on a number of feature films involving space and physics. I have given public science talks on myriad topics at dozens of dark sky festivals, conventions, universities, bars, public sidewalks, and on the metro with the aim of enhancing public education across our society.