The enormously powerful plasma streams are the largest ever seen, measuring 23m light years from end to end, a distance that would cross 140 Milky Ways arranged side by side.

The fierce, narrow streams emerge from the top and bottom of the supermassive black hole and have a combined power output equivalent to trillions of suns.

Black hole jets are streams of charged ions, electrons and other particles. These are accelerated to nearly the speed of light by the immense magnetic fields around black holes. Such jets have been known about for more than a century, but until recently they were thought to be rare and not so extensive.

https://www.theguardian.com/science/2024/sep/18/huge-plasma-jets-spotted-gigantic-black-hole-porphyrion