Alterian Rift

"The Alterian Rift?" "That is impossible. Nothing could survive within such unrelenting forces."

- Artanis and Karax, on the revelation of Ulnar's location



The Alterian Rift is an astral anomaly that houses Ulnar, where the xel'naga seeded the universe with life. It contains such unrelenting forces that it should shred anything that enters it into its base particles. Within it exists a pocket between universes. While within the rift, no transmissions can be send in or out.

Artanis lead the Spear of Adun into the Alterian Rift at the behest of the Keystone, leading him to the Ulnar, but they were followed by the Tal'darim and the Moebius Corps. Sarah Kerrigan and her Zerg Swarm had arrived earlier in the rift, and were engaged with hybrid.