Death may be one of the biggest unknowns, but we do know what happens during the dying process leading up to natural death. Understanding this process, even at the cellular level, and familiarizing ourselves with images of dying may make us more comfortable with the idea of death.With rising longevity and the consequent rise in natural death, will 100 become the new 50?In the in-depth PBS series On Our Own Terms: Moyers on Dying, Bill Moyers goes from the bedsides of the dying to the front lines of a movement to improve end-of-life care in America.Winner of the first prize at the 1911 International Art Exhibition in Rome, Gustav Klimt's "Death and Life" depicts the never-ending circle of death and life. Klimt himself was apparently never totally satisfied with this painting, as he began making changes to the original version four years after winning the prize, even after it was framed.