September 1931
From The Space Library
The AIS released David Lasser’s book The Conquest of Space, the first book in English to seriously address space flight. The book is distributed by publisher Hugo Gernsback’s network.
Issue #12 of the Bulletin of the American Interplanetary Society is published. It includes a discussion on whether life can exist on the moon and specifically changes in the crater Eratosthenes as noted by astronomer William H. Pickering.