From Bulbapedia, the community-driven Pokémon encyclopedia.
Ultra Space (Japanese: ウルトラスペース Ultra Space) is the home of Ultra Beasts, accessible via Ultra Wormhole. Professor Burnet is researching these strange phenomena.
In the games
Pokémon Sun and Moon
The player is only able to visit the home of Nihilego, Ultra Deep Sea (referred to as Ultra Space), in order to save Guzma and Lusamine from an Ultra Wormhole at the Altar of the SunneS/Altar of the MooneM.
Pokémon Ultra Sun and Ultra Moon
The following areas can be accessed by merely interacting with the Ultra Wormhole at the Altar of the SunneUS/Altar of the MooneUM:
Unlike in Sun and Moon, the player can travel through the Ultra Wormhole with Solgaleo or Lunala using Ultra Warp Ride and access several new Ultra Space areas. The following areas can be accessed this way:
In other languages
|| 究極空間 Gaugihk Hūnggāan
|| 究極空間 / 究极空间 Jiūjí Kōngjiān
|| 울트라스페이스 Ultra Space
|| Ультраизмерение Ul'traizmereniye