ICASU is an interdisciplinary arena for research, education, and outreach. Members of the center seek answers to problems in fundamental physics at the intersections of cosmology, gravity, high energy, and nuclear physics. ICASU researchers ask questions such as: What is the universe made of at the most fundamental level? What are the principles, symmetries, and forces that govern the interactions of the fundamental particles and fields? and How does the universe work at all scales of energy, curvature, and size?