Mary Gribbin and John Gribbin are among the best-known current popular science writers. Together, they have written many acclaimed books, including Ice Age, FitzRoy, Stardust, and Big Numbers. Mary is a Visiting Fellow at the University of Sussex, and a Fellow of the Royal Geographical Society with a special interest in plants and exploration. John is also a Visiting Fellow at the University of Sussex, a Fellow of the Royal Society of Arts, and the author of books including The Universe: A Biography, In Search of Schrodinger's Cat, and Science: A History.