A 1:60 scale LEGO model of the Leonov, from the move 2010: The Year We Make Contact.
This is another one of my favorite science fiction vessels, and was an obvious companion build for the Discovery. It is built to the same scale as the Discovery, and can technically couple with it. Unfortunately doing so under the influence of Earth’s gravity requires an enormous amount of external support, which I did create at some point. I have an edited photo of them joined, but it’s actually not very interesting.
The armature containing the habitat modules rotates, and is powered by an internal motor and gearing system.
I have created building instructions for it but, much like the Discovery, at 3650 pieces it would be an ambitious project. Again, keep in mind that it was designed and built in 2004, so some pieces may be harder to come by these days.