Dr. Melissa Rice, Mars Rover specialist and friend of the show, is back!  Dr. Rice and Dr. Jim Davenport talk with us about planets, the habitable zone and what is so important about the Trappist-1 system.  

Please enjoy this show where we speculate about planets outside our solar system (exoplanets) and compare them to the amazing moons that orbit Saturn and Jupiter.

Image Courtesy of NASA