My field of expertise is theoretical cosmology and astrophysics. I work on the origin of large scale structure in the Universe, on the general theory of relativity and  on the nature of dark matter and dark energy.

I have written a book on cosmology, The State of the Universe, and I regularly write, and review, for magazines and broadsheets. I also give public lectures and take part in speaking events.

I run the artist in residency program in Astrophysics at Oxford and I have a keen interest in education in Africa.