Andrew Liddle is Professor of astrophysics at the Astronomy Centre of the University of Sussex, and a university Director of Research. He is the author or co-author of more than 150 scientific papers and two technical textbooks. His research focuses on theoretical cosmology and astrophysics, in particular on the origin and evolution of the structure of the Universe.


Jon Loveday is Senior Lecturer in astronomy at the University of Sussex. He is also director of graduate studies. He has previously held positions at the University of Chicago, Fermi National Accelerator Laboratory, and the Australian National University. He is the author or co-author of more than 100 scientific papers. His research focuses on observational cosmology and galaxy surveys.