Dave Goldberg is a professor and director of undergraduate studies in the Department of Physics at Drexel University. He earned a Ph.D. in Astrophysics from Princeton University, and currently works on issues in theoretical cosmology, especially on how gravity can distort our view of the universe. Dr. Goldberg is very interested in the interface between science and pop culture and is especially prone to nerdly excess of sci-fi references. He writes an "Ask a Physicist" column for io9.com, has been featured on NPR's Studio 360, and has contributed to Slate.com and the L.A. Times. He lives in Philadelphia with his wife and daughters.