Silk has contributed to Just Trish! as an author.Joseph Silk is the Head of Astrophysics and Savilian Professor of Astronomy in the Department of Physics at the University of Oxford. Previously, he was a tenured professor at the University of California at Berkeley, where he researched theoretical astrophysics. He has received several awards for his contributions to astronomy, and is currently a Fellow of the American Association for the Advancement of Science, the American Physical Society, and of the Royal Society, United Kingdom. He is the author of several books, including A Short History of the Universe, Cosmic Enigmas, and The Left Han