So I listen to...

...a podcast called Spaceship Radio, and on the most recent episode, Andy Doan recommended a podcast called The Silent Universe. I haven't finished listening to the first episode, but so far I am very impressed with it, too (I'm about halfway through).

Andy compared it to Battlestar Galactica (which I haven't seen), but if you like that sort of thing, or any sci-fi at all and you listen to podcasts (or MP3s), give it a listen. You probably won't regret it.