He is also a Fellow of Churchill College, where he a Director of Studies for Physics.
His research focuses on supernova remnants (SNRs), including studies of G1.9+0.3 the youngest Galactic SNR yet identified, and he has written a book on the historical supernovae along with F. Richard Stephenson.
He designed the cubehelix colour scheme for intensity images.
His sporting interests include coxing, cricket and croquet.
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