Starting Sunday night on ABC, Ron Livingston, Laura Harris, and Malik Yoba star in the latest drama series, DEFYING GRAVITY.  The ABC release tells us: From executive producers James Parriott and Michael Edelstein comes “Defying Gravity,” a sexy, provocative space thriller set in the very near future against the background of our solar system, in which eight astronauts from five countries (four women and four men) undertake a mysterious six-year international space mission covering eight billion miles. Hurtling into the