Curiosity. Courage and luck play a much bigger role in scientific breakthroughs than sheer brain power according to some of the world's best known scientists. Science Journalist Stefan Klein sits down for conversations with 19 scientists, including three Nobel Laureates, to find out what motivates them, what inspires them and what mysteries that still allude them. Readers eavesdrop on the discussions in Klein's new book called We Are All Stardust:: Scientists Who Shaped Our World Talk about Their Work, Their Lives, and What They Still Want to Know. We'll talk to Stefan Klein, considered Europe's most influential science writers.