The One Thing That Scares Neil de Grasse Tyson About Being On TV

Long before Neil de Grasse Tyson hosted Fox's successful documentary series "Cosmos," he was more famous for his work in the science community as a leading astrophysicist, author, and educator. But it wasn't easy for the 55-year-old to transition from teacher to TV star. "It was hard because as an educator and as a scientist, I give lectures and there's up to 1,000 people in the room and I see what their reaction is at every moment — are they asleep? are they bored? are they excited? On T...