3:30 PM - 4:30 PM
I will describe two exciting objects discovered this year. K2 is a comet infalling from the Oort cloud and discovered to be active at unprecedented distances, far beyond the orbit of Uranus. U1 is the first-discovered interstellar interloper and, I believe, the tip of the iceberg. I will describe in an accessible way the big-picture significance of these objects for cometary science and for understanding the formation of the solar system.