At Imperial College London, Dr Clements carries out research into extragalactic far-infrared and submillimetre astronomy, space-based astronomy, the star formation history of the universe and dust in galaxies.
He also studies ultraluminous infrared galaxies and the quasar-galaxy connection, and astrobiology in our own Solar System.
He has won several awards for his research, including the ESO Fellow from European Southern Observatory in 1994, the Douglas Visiting Scholar at the Steward Observatory at University of Arizona in 1998 and the Gruber Prize for Cosmology from the Gruber Foundation in 2018.
He is a fellow of the Royal Astronomical Society and a member of the American Astronomical Society (AAS).
He also teaches undergraduate courses at Imperial College London.