Create a new kind of anomaly, the worm-hole. When you send ships through a worm-hole, they appear in the other extreme of the worm-hole, that could be in the opposite side of the galaxy.
Maybe, it could be interesting, treat it as a new technology branch (Galactic-Achivement), that allows you the creation of worm-holes (with a maximun number), so you can use it for commercial or logistics purpouses. Even, you could rent the worm-hole to third parties...