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.
Earth, Planets and Space Earth, Planets and Space is a peer-reviewed open access scientific journal published by Springer Science+Business Media and Terra Scientific Publishing Company on behalf of five Japanese learned societies: the Seismological Society of Japan, Society of Geomagnetism and Earth, Planetary and Space Sciences, Volcanological Society of Japan, Geodetic Society of Japan, and the Japanese Society for Planetary Sciences. It was established in 1949 as the "Journal of Geomagnetism and Geoelectricity" and obtained its current name in 1998 when it absorbed the "Journal of Physics of the Earth" (established 1952). The editor-in-chief is Yasuo Ogawa (Tokyo Institute of Technology).