I'm curious what do you fine people listen to, in terms of Science Fiction. I've recently finished Ars Paradoxica. It starts as a relatively simple story - wacky science, scientist vs military, temporal paradoxes 101. By episode five, it turns rather dark, only to spin a tasty tale of temporal Cold War, touching on both scientific and human aspects of time travel. Plus, it has really nice character development - it was a delight to see those characters change and evolve with the time.
Another recommendation would be SAYER. A bit of a one-man show, SAYER is a tale of a remote base on Earth's artificial satellite, where science is being advanced recklessly, for the betterment of all of humanity. Or at least, selected parts of it. Part Aperture Science, part Paradyzja, SAYER is damn good SF horror, that starts with a simple scare-of-the-day plot, and spuns up a convincing tale of human/AI relations. And bees.
Your turn - any science fiction podcasts you listen to?