... in 1945 RADAR (RAdio Detection And Ranging) was still pretty whiz bang, high tech stuff. Searching outer-space for incoming rockets was at least a decade away. This illustrations reminds me of scenes from the 'B' science fiction classic 'Fiend Without a Face' . The AV Kid has the whole movie here. In the movie the search for atomic powered Radar has the side-effect of producing invisible brain sucking monsters - of course!
Wonder if 'Hap' Arnold didn't want to tell us about that?
all images- Right click- open in New Window= super colossal size!