June 1927
From The Space Library
Nikolai Rynin organizes The First International Exhibition of Models of Interplanetary Apparatus and Mechanisms in Moscow.
Can We Fly to the Planets? an editorial appears in Science and Invention magazine.
Nikolai Rynin organizes The First International Exhibition of Models of Interplanetary Apparatus and Mechanisms in Moscow.
Can We Fly to the Planets? an editorial appears in Science and Invention magazine.