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.
International Space Orchestra The International Space Orchestra (ISO) is a team of space scientists from the NASA Ames Research Center, SETI Institute (Search for Extraterrestrial Intelligence), Singularity University, and the International Space University.