A supermassive black hole 665 million light-years away is still firing a relativistic jet six years after shredding a star. The tidal disruption event has produced the longest-lasting and brightest jet ever recorded, now 50 times more luminous than when first spotted.

Such events occur when stars wander too close to black holes and are torn apart by gravitational forces. This particular encounter involved a red dwarf star and a black hole with a mass five million times that of the sun. The delayed and prolonged jet response has scientists puzzled.

Researchers believe the jet may peak in intensity within the next year before gradually fading. However, it could remain visible for over a decade. These rare cosmic events help scientists understand black hole behavior and the role of magnetic fields in powering galactic phenomena.