The focus of this research course is on cosmology and extragalactic astronomy, from studies of the large-scale structure of the Universe to understanding the formation and evolution of galaxies. Galaxies form the building blocks of the observable Universe, and we can now observe these structures over 13 billion years back in time. How did galaxies form, and how did they evolve to produce the variety of phenomena we see today? We tackle these fundamental problems using a variety of complementary and collaborative approaches, from detailed studies of galaxies in the local Universe through to evolving galaxies at intermediate redshifts, and finally by observing the most distant galaxies in the process of formation. Complementing our observational effort, our theoretical and numerical expertise provides the vital context for our observational programmes, from numerical studies of galaxy and structure formation through to studying the physics of the intergalactic medium and the cosmic web. Careers support for research staff and postgraduate research students is available on an individual basis and through a range of career management workshops delivered in collaboration with the Graduate School and Graduate Centers.