Quantum Mirror

The Quantum Mirror
A portal between various different realities. There is a separate device that controls the portal, allowing the user to sort through the various realities. Its origin is unknown, though SG-1 discovered it on P3R-233.

Appearances

 * SG1: There But For the Grace of God
 * Daniel Jackson is transported through the Quantum Mirror into an alternate reality where he finds that Earth is about to be overrun by a Goa'uld invasion force, which is being led by Teal'c. Daniel discovers that his reality is facing the exact same threat - an invasion coming in retaliation for the death of Ra - and asks the alternate versions of several of his friends to help him return to save his own world.


 * SG1: Point of View
 * An alternate Samantha Carter and Charles Kawalsky escape their reality through the Quantum mirror. When Dr. Carter begins to suffer Temporal Entropic Cascade Failure at the cellular level due to the presence of two Samantha Carters in one reality, General Hammond and SG-1 decides that, to save Dr. Carter's life, they will free their Earth, which has been taken over by Apophis's forces led by Teal'c.  The General also orders that, upon completion of the mission, the Quantum Mirror be destroyed.