Conjunction

A Conjunction is a multiversal event, where multiple dimensional bridges and barriers are created and feed into one-another.

Details
Conjunctions are catastrophically wild, but mercifully rare, events, the cause of which being as varied as the Conjunction itself.

At the basic level, a Conjunction is when two dimensions are linked together. Officially, CDSO portals don't classify a Conjunction, as they all feed into the Network Dimension, but by the proper definition, the CDSO network is by far the largest known Conjunction.

Known Conjunctions

 * Antiverse Conjunction - Created through dimensional gate technology developed by the Antiverse Imperium. The Conjunction spread out from a single origin point, that being Earth and nearby planets, towards other other Earths. This Conjunction is the cause of the story in Dream Girl: Ascent.
 * Crashing Point Conjunction - The event itself is surprisingly undocumented, but it drives the main concept behind Crashing Points.
 * Ascendant Conjunction - A now-closed Conjunction created by the Ascendants in their war against the Celestians. At the conclusion, all known permanent gateway stations were destroyed.
 * Omega X-57-A Conjunction - A small Conjunction created by Sigil 57 during the events of Tales from the Sigmaland. Sigil 57's death at the hands of Sigma and his friends is said to have closed it, eventually.