It sounds like something out of a science fiction novel.  The incredible and rare dark star cluster, hiding the evil super villain’s headquarters.  A dark star cluster is something I would imagine as a spooky, eerie type of place where everything you see changes when you enter its space. Science fiction aside, a dark star cluster is real, and it’s a new type of cluster that is similar to the mighty dense globular clusters that orbit most galaxies.  Globular clusters orbit in a halo of space around the centres of galaxies, and though our Milky Way harbours 150 of them,...