My website's theme was constructed to have a futuristic/spacey look. In fact, it is called the Space theme and can be downloaded for free here: Space Theme. It is easy to configure and can be customized quite a bit. I'm still trying to add new features such as a color scheme selector, dropdown menus, and better compatibility with other common Drupal modules. There are quite a few custom enhancements that apply directly to my site, so a subtheme was created. This allows me to add custom styling without affecting the integrity of the Space theme.