Janna Levin is the Tow Professor of physics and astronomy at Barnard College of Columbia University. She has contributed to an understanding of black holes, the cosmology of extra dimensions, and gravitational waves in the shape of spacetime. Among other prizes she has been named a Guggenheim Fellow. She is also director of sciences at the cultural center Pioneer Works and the editor-in-chief of The Broadcast. Her previous books include How the Universe Got Its Spots and a novel, A Madman Dreams of Turing Machines, which won the PEN/Bingham Prize. Her book, Black Hole Blues and Other Songs from Outer Space, is the inside story on the discovery of the century: the sound of spacetime ringing from the collision of two black holes over a billion years ago. Her most recent book is Black Hole Survival Guide.