From 1999 through 2003, he was a postdoc at the Canadian Institute for Theoretical Astrophysics, at the University of Toronto. He received his Ph.D. in physics in 1999 from Princeton University , under the supervision of Bruce T. Draine. His research focuses on physical processes associated with cosmic dust. He also teaches General Relativity and Planetary Science at George Mason so feel free to pepper him with questions on those topics!