Paul Tough's father was a mild-mannered professor. And then one day he left his family and went on a quest. In this story, for the first time, Paul joins him on that quest: To make contact with extraterrestrial life. Paul asks his father the questions he's always wanted answered about his alien pursuits. Paul Tough is one of the original contributing editors to This American Life. He is the author of How Children Succeed: Grit, Curiosity, and the Hidden Power of Character. (18 minutes)