My favorite one is "The Skeptics' Guide to the Universe". It has likable hosts and content that is entertaining, but often educational as well. The level of co

My favorite one is "The Skeptics' Guide to the Universe". It has likable hosts and content that is entertaining, but often educational as well. The level of commitment to the show by the Skeptic's Guide hosts is simply amazing. They have been producing great content every week since 2005. I would recommend starting at #108 and make sure you listen to #109 next to see just how committed they are. I usually listen to the show while falling asleep or taking a bike ride. "Planet Money", "Radiolab" and "The Moth Podcast" are good too.