Science Scratching the Surface: Diamond Planet KUAF | By Caitlin Ahrens Published June 28, 2019 at 11:30 AM CDT Facebook Twitter LinkedIn Email Listen • 2:21 1 of 2 2 of 2 On this episode of Scratching the Surface, Caitlin talks about a mysterious exoplanet made of diamonds. Caitlin Ahrens - The Pluto Manager