Janna Levin is a theoretical cosmologist. She holds a PhD in Theoretical Physics from MIT granted in 1993 and a BA in Astronomy and Physics from Barnard College granted in 1988. Her work predicts a finite universe and uses techniques from topology and fractals to demonstrate this. Other work includes black holes and chaos. She is the author of How the Universe Got Its Spots (2002) which is a popular account of her work. Since January of 2004, Janna Levin has been an assistant professor in astronomy and physics at Barnard College.