https://www.scientificamerican.com/article/giant-black-hole-swallows-a-star-and-belches-out-a-superfast-particle-jet/

Marshaling a decade’s worth of data from telescopes around the world, scientists have captured new details of a gargantuan black hole feasting on a hapless star, watching as the black hole consumed its prey and burped out a jet of material moving at a significant fraction of the speed of light. The results are published in the June 13 edition of Science, and could help researchers better understand how black holes grow and influence their galactic surroundings.

“Never before have we been able to directly observe the formation and evolution of a jet from one of these events,” says study co-author Miguel Pérez-Torres of the Institute of Astrophysics of Andalusia in Spain.