From Across the Yard: Running, Aliens, Humanity

I. Gaining a Foothold: Amy Friedman looks at the organization Back on my Feet, which fosters a sense of community among the homeless.

II. Where No Man Has Gone Before: James Pollack explores the relatively new field of exoplanetary science, or the search for planets that could support life, and synthetic biology, which might be able to create new life.

III. Public Service: If Kennedy inspired America to get involved in public service, who will do the same for this generation? Chris Kilgore reports.

IV. Trick or Treat!: Kevin Sun examines Halloween.