How do the wormhole gates function?
The wormhole gates are opened over existing weaknesses in subspace. They are initially powered from their point of origin — an exceedingly costly task in terms of energy. For this reason, the Nephilim immediately construct a physical gate around the point of destination of the newly created anomaly. After this, they attempt to construct a Stellar Accretion Device; this specialized starbase uses the natural energy of a star to keep open a wormhole permanently. Once an accretion device is activated, the wormhole becomes permanent.
