Now with the international space station generating a bunch of video, and Space X and other companies pursuing private space flight, I think it's on all of our radars much more than it has been since the moonshots. The science of filmmaking is making these visions possible now.

The more you learn about the real vastness of space and the real challenges of space travel, the more completely you appreciate the necessity of taking very good care of this world and being good stewards of it.

I studied physics at Princeton when I was a college student, and my initial intention was to major in it but to also be a writer. What I discovered, because it was a very high-powered physics program with its own fusion reactor, was that to keep up with my fellow students in that program I would need to dedicate myself to math and physics all the time and let writing go. And I couldn't let writing go, so I let physics go and became a science fan and a storyteller.

You don't control whether your movies get made. You can't. All you can control is whether your draft is great. So, you write your great draft, as best as you can, and then move on to the next thing.

I think the greatest danger of the promise of space travel is that it can lead us to be cavalier about the world we live on, if we assume we can find or make more worlds. I think in our lifetimes we surely will not, probably in the lifetimes of our great-great-grand-descendants we will not.

Everything I learn about the world, whether it's the simple arcana of how commercial products are manufactured and designed and how they reach our shelves and where the chips come from and who does the code, to more profound things like whether or not a black hole might be penetrable as a wormhole, whether or not universes might be accessible from here, whether space can be stretched and compressed to enable faster-than-light travel without violating physical law - all of those things have tremendous story potential.

It is true that, with TV, a writer gets a great deal more respect.