IAU Symposium 285, "New Horizons in Time Domain Astronomy", to be held at the University of Oxford during September 19-23, 2011.

Variability pervades the cosmos. Studies of variability dominate research in astrophysics, and are so common that very many groups, projects and instruments are dedicated to the examination of just one form of variability, or one aspect of its diverse manifestations.

This symposium will cut across the accepted grain, and examine the phenomenon of variability itself. It will cover all aspects of time-domain astronomy, interpreting its various forms to obtain a detailed understanding of the physics involved.