Including the non-governmental organisation of experts committed to expanding the frontiers of space, what were the other two societies Loeb was elected fellow of?
International Academy of Astronautics The International Academy of Astronautics (IAA) is a non-governmental organisation of experts committed to expanding the frontiers of space. It was established in Stockholm (Sweden) on August 16, 1960.
Society of Economic Geologists The Society of Economic Geologists (SEG) is a scientific organization that promotes the study of geology as it relates to mining, mineral exploration, mineral resource classification and mineral extraction. The society's Publication Board publishes the scientific journal "Economic Geology". The society serves 7,000+ members worldwide who are committed to advancing the science and the discovery of mineral resources through research, publications, courses, and field trips.