Season 4 of The Expanse is about to begin on Amazon Prime. Host Mat Kaplan visits with the authors of the eight novels (so far) that are the basis of this outstanding hard science fiction series that begins with humankind having become a spacefaring species that spans the solar system. We’ve also got space headlines from The Downlink. Bruce Betts celebrates more recognition for the Planetary Society’s LightSail project in this week’s What’s Up. https://www.planetary.org/multimedia/planetary-radio/show/2019/1211-2019-the-expanse-authors.html
