Durham honours inspirational physicist

We are saddened to hear of the death of Professor Sir Arnold Wolfendale, one of the finest physicists of his generation and an inspirational teacher to generations of our students. Sir Arnold came to Durham in 1956, served as Head of our Physics Department and remained actively involved with the University until his death in December 2020, aged 93. Ground-breaking research Sir Arnold's long-term research interest was in cosmic rays physics, and in particular whether the highest energy cosmic rays, which might have caused mass extinctions, were produced inside our galaxy as well as outside. However, he had wide-ranging interests including particle physics, gamma ray astronomy, molecular hydrogen in galaxies, solar and geomagnetic variation, cosmology and terrestrial mass extinctions. A glittering career Sir Arnold was awarded many honours from all around the world. He was elected as a Fellow of the Royal Astronomical Society in 1973 and a Fellow of the Royal Society, the UK's national academy of sciences, in 1977. He served as President of the Royal Astronomical Society and the European Physical Society.