Science Scratching the Surface: Lobate Debris Apron KUAF | By Caitlin Ahrens Published July 1, 2019 at 11:08 AM CDT Facebook Twitter LinkedIn Email Listen • 2:18 1 of 2 2 of 2 On this episode of Scratching the Surface, Caitlin talks about the terms and composition of the ice pockets on Mars. Caitlin Ahrens - The Pluto Manager