In the fourth and final lecture in the 'Telescopes Now' series, Professor Alan Watson talks about his work at the Pierre Auger Cosmic Ray Observatory.
Professor Alan Watson is Emeritus and Research Professor of Physics at the University of Leeds, and with James Cronin established and led the Pierre Auger Cosmic Ray Observatory in Argentina. In his lecture he touches on some of the practical, political, technical, financial and organisational challenges faced by the team that he worked with to establish the Observatory.