The forbidden planet
The forbidden planet was large, but not as large as one of the planets inhabited by humanity; even among the satellites in the galaxy, it would be one of the small ones, although if one thought that this entire planetoid was a space base, the perspective changed.
How many facilities and factories would there be in there?
However, if someone saw the planet from the outside, they would only see a rock with craters in the middle of nowhere; not even the surface was special, hardly any mineral, barely usable, although 97% of the planet from the crust inwards was composed of iron and other metals. Or at least that's what the reports said.