Organizers: Jeroen Tromp, Shravan Hanasoge, Yang Luo

The idea of using waves to probe the optically invisible interiors of objects has proven to be highly successful in determining the structure of widely different media such as earth, Sun, and with the advent of astro-seismology, a vast spectrum of stars. Despite the disparate paths these fields have taken, exacerbated by the few opportunities for interdisciplinary conference, a surprising degree of unity in the ideas and techniques still persists. In particular, the direct analogy between ambient noise tomography of the earth and helioseismology has allowed the development of mutually beneficial ideas.