The Oceana (or Oceanan) Rift is a cosmic phenomenon at the Oceana Barycenter where some spacecrafts and space objects disappear. The Oceana Rift is considered by Atlanticans to be a natural cosmic wormhole, as some missing spacecrafts have been sighted or recovered near the Emeria (or Emerian) Rift at the Emeria Barycenter. The Emeria Rift is a tear through the fabric of space and time.
The Oceana Triangle is an area of space around the Oceana Rift in the shape of a triangular pyramid, or tetrahedron, where spacecraft and space objects are likely to disappear.
Absentia is the time period in which travelers of the Oceana or Emeria Triangles are missing for.
Resurgents are the travelers of the Oceana or Emeria Triangles that return from their absentia, or time period of absence.