Santa Fe, New Mexico, USA
The astronomical time domain ranges from solar physics and solar system objects to objects and processes at galactic and cosmological distances. Transients arrive via electromagnetic radiation, gravitational waves, neutrinos and other particles. Discoveries are made via spacecraft and by ground-based surveys, through automatic pipelines and the Virtual Observatory, with robotic telescopes and by the human eye. A strong interdisciplinary agenda will engage the emerging information and physical infrastructure for astronomical transient events and their rapid follow-up.