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Kavli Institute for Cosmology, Cambridge



  • 2021-present Director, Kavli Institute for Cosmology, Cambridge
  • 2017-2021 Deputy Director, Institute of Astronomy
  • 2016-2021 Deputy Director, Kavli Institute for Cosmology, Cambridge
  • 2017-present Professor of Cosmology and Astrophysics
  • 2011-2017 Reader in Astrophysics and Cosmology
  • 2006-2011 University Lecturer, IoA and DAMTP
  • 2002-2007 Royal Society University Research Fellow
  • 2000-2002 PPARC Postdoctoral Research Fellow
  • 1998-present Fellow, Queens' College


I have a range of research interests in physical and theoretical cosmology, mostly centred on the issue of testing the cosmological model and the origin of cosmic structure with cosmological observations. A particular focus is the the origin, interpretation, and measurement of temperature anisotropies and polarization in the CMB. I was a Core Team member of the Planck High-Frequency Instrument and am a member of the Simons Observatory with particular interests in lensing of the CMB, constraining the key cosmological parameters and searching for B-mode polarization induced by gravitational waves from the early universe.