Do you remember when he was little and asked you why people went into space?” “Yes. I told him it was because people are born adventurers, we have to explore and discover, it’s our nature.” “But you could see that he was scared, so you also said: ‘Ted, we’re not going into space because we’re afraid of aliens. We’re going because we’re scared we’re alone. It’s an awfully big universe to be alone in.’ ”