"The seeds of galaxy formation, obscured star formation at high redshift, and the local fossil record of galaxy formation."

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Observational cosmology is an attempt to understand the processes which initiated the universe we live in, and how the rich and complex structure in the present-day universe formed and evolved. My research focuses on studying both the fundamental physics of cosmology via the Cosmic Microwave Background (CMB) and measurements of structure on very large scales, down to the details of galaxy evolution and the complex physics which manifests on small scales. There are many unanswered questions, starting from how the primordial density fluctuations in the very early universe inflated to produce the observed distribution of structure and galaxies, all the way to how environment drives galaxy evolution. Studying the Sub-millimetre Galaxies (SMGs) in particular in the distant universe gives us insight into the peak epoch in which massive galaxies were forming the bulk of their stars. This leads to a host of questions, such as whether massive galaxies form in a single burst of star formation or is their growth extended over time.