Cascade reaction
A cascade reaction is a phenomenon which can occur in a star due to an imbalance in fusion reactants in its core.

Such a phenomenon was present in the Gamma Quadrant star Trialus. The cascade reaction in the star resulted in a dimensional shift in the star's only planet, Meridian. This caused Meridian to undergo periodic transitions to a dimension which intersected our own, where the inhabitants existed in a non-corporeal state. ()

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Astronomical phenomena