Brian May greatest guitarist of all time. He was ranked at No. 26 on "Rolling Stone" magazine's list of the "100 Greatest Guitarists of All Time". In 2012, he was ranked the 2nd greatest guitarist in a "Guitar World" magazine readers poll. May was appointed a CBE by Queen Elizabeth II in 2005 for "services to the music industry and for charity work". May earned a PhD in astrophysics from Imperial College London in 2007, and was Chancellor of Liverpool John Moores University from 2008 to 2013. He was a "science team collaborator" with NASA's New Horizons Pluto mission. He is also
London International University. London is home to five major medical schools – Barts and The London School of Medicine and Dentistry (part of Queen Mary), King's College London School of Medicine (the largest medical school in Europe), Imperial College School of Medicine, UCL Medical School and St George's, University of London – and has a large number of affiliated teaching hospitals. It is also a major centre for biomedical research, and three of the UK's eight academic health science centres are based in the city – Imperial College Healthcare, King's Health Partners and UCL Partners (the largest such centre in Europe).