http://www.newsweek.com/volcanic-eruption-black-hole-bubbles-light-years-supermassive-active-galactic-nuclei-nest20004-1641503

Astronomers have watched a supermassive black hole blowing out bubbles and filaments of hot gas that stretch for hundreds or thousands of light-years, affecting anything that stands in their way.

The discovery came as the team studied a grouping of galaxies with a supermassive black hole at their center, located 200 million light-years from Earth.