How big is the universe? What might lie beyond our observable universe, and how could we confirm or disprove various proposals? What role do the extra dimensions predicted by string theory play in cosmology? Are there new ways of looking at cosmological datasets that could be useful when confronting theories with data? Can computer simulations of the very early universe shed light on it's possible initial conditions and evolution? This is a sampling of the types of questions that drive my research.

A more complete description of my current research can be found in my recent publications, or some popular accounts of my research and that of my research collaborators. You can find a general introduction to early universe cosmology here.

My research is supported by:

Some of my research collaborators