JANNA LEVIN?is the Claire Tow Professor of Physics and Astronomy at Barnard College of Columbia University. She is also the Founding Director of the Science Studios at Pioneer Works and the Editor-in-Chief of The Broadcast. A Guggenheim Fellow, Janna has contributed to an understanding of black holes, the cosmology of extra dimensions, and gravitational waves in the shape of spacetime. She is the presenter of the NOVA feature Black Hole Apocalypse, aired on PBS¡ªthe first female presenter for NOVA in 35 years. Her previous books include?How the Universe Got Its Spots,?Black Hole Blues, and a novel,?A Madman Dreams of Turing Machines, which won the PEN/Bingham Prize.?Her most recent book is?Black Hole Survival Guide.