Marcus Chown is an award-winning writer and broadcaster. His books include Breakthrough, The Ascent of Gravity, which was the Sunday Times 2017 Science Book of the Year; Infinity in the Palm of Your Hand; What A Wonderful World; Quantum Theory Cannot Hurt You; WeNeed to Talk About Kelvin and Afterglow of Creation, the latter two of which were runners-up for the Royal Society Book Prize. Marcus has also won the Bookseller’s Digital Innovation of the Year Award for Solar System for iPad.