Space Nut II is a Space Colony concept created by Obayashi Corporation in Japan, 1996. The background image is from <a href="//commons.wikimedia.org/wiki/File:Orion_(5493117646).jpg" title="File:Orion (5493117646).jpg">File:Orion (5493117646).jpg</a>.
<a href="//commons.wikimedia.org/wiki/User:Honeplus" title="User:Honeplus">Honeplus</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>