Astronomers had been watching a galaxy far, far away for a long time. It seemed unremarkable. But in December 2019, it suddenly started shining brighter than ever. Now, astronomers believe they ...

The first black hole that astronomers observed "turning off" just turned back on, releasing jets of hot gas into the cosmos.

For the first time, scientists witness a supermassive black hole releasing jets of material at immense speeds, offering a glimpse into jet formation and propagation in active galactic nuclei.

Rare intermediate black hole located near Milky Way's center Top 5 Black Hole discoveries of the year Insights into black hole evolution, spin and galactic impacts ...