College of Science lecture series, "The Edges of Life." As Science and technology advance, fundamental issues central to the concept of life become harder to answer. Wednesday, January - 30 Life's Extreme Edge: The Limits of Organic Life on Earth and Other Planets. Wednesday, February 6 - Life's Final Edge? The Origin and Extinction of Species in a Human-Dominated Earth. Lectures are held at Centennial Hall on the campus of the University of Arizona. Parking is available on a pay per use basis in the Tyndall Avenue Garage. All lectures begin at 7:00 PM and are free to the public. Call 520-621-4090 for more information.