Janna Levin is a professor of physics and astronomy at Barnard College. She is also director of sciences at Pioneer Works, a center for arts and sciences in Brooklyn. Her previous books include Black Hole Blues and Other Songs from Outer Space, How the Universe Got Its Spots, and a novel, A Madman Dreams of Turing Machines, which won the PEN/Bingham Prize. She was recently named a Guggenheim Fellow. She lives in New York.