Galactic nucleus

Artist's impression of the active galactic nucleus shows the supermassive black hole at the center of the accretion disk sending a narrow high-energy jet of matter into space, perpendicular to the disc in this image by Science Communication Lab in Kiel Germany, released on July 12, 2018.

In a study published in the journal Science, researchers have determined that a supermassive black hole like this one is the source of high-energy neutrinos detected on Earth.