Videos

Ms. Levin talked about her book, How the Universe Got Its Spots: Diary of a Finite Time and a Finite Space, published by Princeton University Press. The book discusses what is known about th…

Two authors of biographies of the late Carl Sagan talked about their books. Mr. Davidson wrote Carl Sagan: A Life and Mr. Poundstone wrote Carl Sagan: A Life in the Cosmos. They talked a…