There are huge divorces and divides and chasms in black America between the have-gots and the have-nots, between the monied and the poor, between the educated and the non-educated. And there are huge and growing chasms daily. And I want to say that it's not simply about generation. It's about genre.

Hip hop music is important precisely because it sheds light on contemporary politics, history, and race. At its best, hip hop gives voice to marginal black youth we are not used to hearing from on such topics.

It is bad enough to be white and poor; it is worse still to be black, or brown, and female, and young, and poor. Simply said, race makes class hurt more.

I think public intellectuals have a responsibility - to be self-critical on the one hand, to do serious, nuanced work rigorously executed; but to also be able to get off those perches and out of those ivory towers and speak to the real people who make decisions; to speak truth to power and the powerless with lucidity and eloquence.

I would love a combination of action/adventure and... love. And stories told with heart. I would like people to be invigorated as well as moved. People to see the movie and see that. I love to play, y'know, well-rounded characters.

NASA is an engine of innovation and inspiration as well as the world's premier space exploration agency, and we are well served by politicians working to keep it that way, instead of turning it into a mere jobs program, or worse, cutting its budget.

When I used to work the road, I remember I used to ask myself in the mirror, literally, like in a movie, back when I was not very good at all, I'd say, 'What's it like being the greatest comedian in the world?'

I'm really hopeful about the future of space exploration and human spaceflight. Civilization as we know it has been defined by exploration. You know, we need to go off and find out what's around the next corner and what's just beyond what we already know. It's part of our being; it's part of our moral fiber to go off and explore.