This week, May 26-31, 2014, features Amy Barr. Amy is a planetary scientist who is interested in how the moons of gas giant planets accrete, evolve during their first billion years, and form the strange geology on their surfaces. She has worked extensively on the geophysics of Europa, Ganymede, Callisto, and Enceladus. She is an alumna, and member of the Board of Trustees of the Summer Science Program, a summer enrichment program in astronomy for gifted high school students. She holds a BS in planetary science from Caltech and a PhD in Astrophysics & Planetary Science from the University of Colorado. After five years as a research scientist at the Southwest Research Institute in Boulder, CO, Amy joined the faculty of Brown University where she is an assistant professor. In their off hours, Amy and her husband Vladan (a condensed matter physicist) enjoy skiing, doing more science, travel, and spending time on the New England coast. The rest of the year, she tweets as @amytoast.