Professor Martin Rees is a renowned cosmologist and astrophysicist. He was appointed Astronomer Royal in 1995 and Master of Trinity College, Cambridge in 2004 and served as President of the Royal Society from 2005-10. He was made a life peer in 2005 as Baron Rees of Ludlow and he sits in the House of Lords as a crossbencher. He also writes about wider ethical and social issues facing society and has received numerous awards including the Templeton Prize and the Isaac Newton Medal.