 Clube obtained his doctorate in 1959 with a thesis titled "Interferometry of the Solar Chemosphere and Photosphere" and went on to become a professional astrophysicist and astronomer.He has been Dean of the Astrophysics Department of Oxford University, and has worked at the observatories of Edinburgh, Armagh and Cape Town.In 1994 he appeared in the BBC "Horizon" programme; "The Hunt for the Doomsday Asteroid".