James Web Space telescope podcast
Scott, our podcast editor, did a nice podcast interview with folks from the James Webb Space Telescope project in January. The project plans to replace the Hubble Space telescope with a new system orbiting much farther out (1 million miles!) about four times beyond the moon. Even the IBM.com main site picked up the story recently (and did a beautiful job with presenting it).
I'd also recommend listening in to Dan Frye's podcast on Linux security and the two part piece on computer science education and pervasive computing.