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## Astronomers Discover Most Powerful Jets Ever Seen From a Stellar Black hole
Combining observations from the European southern Observatory’s (ESO) Very Large Telescope and NASA’s Chandra X-ray Observatory, astronomers have identified the most powerful pair of jets emanating from a stellar black hole ever observed. The black hole generates a massive bubble of hot gas, extending 1,000 light-years – twice the size and significantly more energetic than those of other known microquasars. this stellar black hole resides within a binary system, as depicted in this artist’s impression. Credit: ESO/L. Calçada/M.Kornmesser, CC BY 4.0
Black holes aren’t simply cosmic vacuum cleaners; they actively manage the matter around them, determining whether to expel it into space as focused jets or disperse it through powerful winds. The interplay between these jets and winds is crucial in regulating black hole growth, star formation in surrounding areas, and the evolution of entire galaxies. This dynamic process, frequently enough described as a “cosmic seesaw,” provides valuable insights into how these enigmatic objects shape the universe.
Recent research, published in *Nature astronomy*, details the observation of a stellar black hole exhibiting an unprecedentedly powerful outflow. The study reveals a distinct shift in the black hole’s behavior, alternating between jet-dominated and wind-dominated phases.This discovery challenges existing models and offers a new understanding of how black holes interact with thier environments.
The research paper, titled ‘Evidence of mutually exclusive outflow forms from a black hole X-ray binary’ is published in *Nature Astronomy*. DOI: 10.1038/s41550-025-02753-x
