THE WORMHOLE AT BARZAN II

Discovered at Barzan II, people thought they found the first stable wormhole. It appeared every 23 minutes. Scientists explained that this was the result of a ring around a planet. They could send a probe true the wormhole and concluded it had reached the Alpha Quadrant, but they never pursued this finding.

That's why Premier Bhavani offered the wormhole to other humanoids on Stardate 43385.6 in exchange for something that would give her people an advantage.