70sscifiart:Sokolov Andrei Konstantinovich O'Neill cylinder
70sscifiart:Sokolov Andrei Konstantinovich O'Neill cylinder -- source link
Tumblr Blog : 70sscifiart.tumblr.com
#oneil cylinder#oneill cylinder#sci-fi#sci-fi#futurism#space habitat
#oneil cylinder#oneill cylinder#sci-fi#sci-fi#futurism#space habitat