In 2018, a galaxy about 270 million light-years away from Earth exhibited a major increase in activity. It quieted down again by 2020 -- only to dramatically increase its output again in 2023. At that ...

Scientists have discovered key conditions needed for a stellar black hole to create plasma jets. Their findings show that when superheated gas material experiences a rapid shrinkage towards the black ...

In a new study published in Astronomy & Astrophysics, astronomers have made an extraordinary breakthrough by observing the interaction between shock waves and pressure waves in the jet of a ...

Active galaxy 1ES 1927+654, circled, has exhibited extraordinary changes since 2018, when a major outburst occurred in visible, ultraviolet, and X-ray light. The galaxy harbors a central black hole ...

Understanding jet ejection in black holes is crucial because it sheds light on galaxy evolution, energy distribution in the universe, and the properties of black holes themselves. Jets influence star ...

A galaxy about 270 million light-years away from Earth in the constellation Draco called 1ES 1927+654 is the focus of the excitement. For many years, scientists had classified 1ES 1927+654 as an ...

"Our discovery about jet formation in stellar-mass black holes may provide a universal key to understanding these phenomena. While these binary systems—where a black hole orbits a normal star—differ ...