I happened to notice this link to a video feature page in my daily New York Times news email. It's a wonderful interview with Neil deGrasse Tyson, an astrophysicist, author, and director of the Hayden Planetarium in New York. I've seen Tyson on TV and read some of his work, and I know him as an articulate and passionate proponent of space exploration, astronomy, and science education. But in this 30 minute interview (in 7 short "chapters"), he gets right to the heart of what matters to him and why it matters to all of us.
Second the notion - it's good video.
