@arteteco I listen to This Week in Technology (TWIT), with Leo Laporte, regularly. Also This Week in Google (TWIG). From the same channel, sometimes, Triangulation, this week for sure because it interviews XKCD's Randall Munroe.

Another good suggestion is ABC's Nightlife. Topics vary quite a lot, include a fair bit of history and other sciences, varying lengths, from an Australian perspective.