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.
Operational Research Society The Operational Research Society or The OR Society is an international learned society in the field of operational research (O.R.), with more than 2,500 members (2011). It has its headquarters in Birmingham, England.