In this issue:
"Why Can't We Live Forever?": Scientists may be able to extend our lives once the mysteries of aging have been unraveled.
"Why Does Life Belong to the Living?": The complicated issue of taking one life and giving it to another.
"Could Time End?": Recent work in physics sheds light on the paradox of time.
"What Comes Next": Visionary scientists write about the new trends that they believe will shape the decades to come.