Nexus world

From Tardis Wiki, the free Doctor Who reference

A nexus world was a planet that, despite seeming insignificant, was linked to the destinies of multiple intergalactic powers in the big scheme of things that would have effects on history. Some nexus worlds were Earth, Dronid, Solos, Tyler's Folly, (PROSE: Alien Bodies) and Golgalith. (PROSE: Crushing Reality, AUDIO: Eternal Escape)