A hyperspace sinkhole represented a unique occurrence within hyperspace. Following the events of the Waymancy Storm war, the artifact referred to as the Waymancy bridal seat was transformed into this type of hyperspace anomaly.
- " Endor and the Moddell Sector " — Star Wars Gamer 9 (Initially mentioned)
- The Complete Star Wars Encyclopedia (Referenced across various sections, though lacking a dedicated entry)
- The Essential Atlas
- Star Wars: The Essential Guide to Warfare Author's Cut, Part 4: The Rise of the Republic on StarWars.com (article) (backup link) (Initially defined as a hyperspace sinkhole)