Regents' Professor Alfred McEwen has been elected a Fellow of the Geological Society of America. Fellows are named "in recognition of a sustained record of distinguished contributions to the geosciences and the Geological Society of America through such avenues as publications, applied research, teaching, administration of geological programs, contributing to the public awareness of geology, leadership of professional organizations." Professor McEwen is Principal Investigator (PI) for the High Resolution Imaging Science Experiment (HiRISE), the most powerful camera ever sent to another planet, one of six instruments onboard the Mars Reconnaissance Orbiter. He is also PI for the Io Volcano Observer, or IVO, mission, which is among the four finalists for the next $500 million NASA Discovery mission. If selected, IVO will orbit Jupiter and make 10 close flybys of its moon Io – the most volcanically active world in the solar system – to determine if the moon has a magma ocean hidden beneath its vibrant, pockmarked surface.