James Webb reveals how a black hole's dusty torus fuels cosmic chaos

Astronomers have used NASA's James Webb Space Telescope to map dust around a supermassive black hole in the Circinus galaxy. The discovery reveals how a dense ring of material, called a torus, feeds the black hole while controlling the escape of energy.

This marks the first time infrared interferometry has been applied to study such structures in an active galactic nucleus.

The team focused on the black hole at the heart of the Circinus galaxy, roughly 13 million light-years away. Using Webb's Aperture Masking Interferometer, they separated the glowing disk of infalling material from the exhaust streaming outward. This sharp imaging overturned long-held assumptions by clearly distinguishing between dust being pulled in and dust pushed out.

Nearly all the glowing dust—about 87%—is packed into a compact torus surrounding the black hole. Less than 1% escapes as exhaust. The torus acts like a fuel line, directing material toward the black hole while shaping how energy bursts free. These findings also explain why some active galaxies emit unusually strong infrared radiation from their cores.

The technique builds on earlier breakthroughs, such as the 2019 Event Horizon Telescope image of the black hole in Messier 87. But unlike that project, Webb's method can now be applied to other black holes. This will help scientists study how these cosmic giants power their surroundings and influence entire galaxies.

Black holes become visible when gas, dust, or even stars spiral too close. As material heats up, it glows brightly before vanishing beyond the event horizon. The new observations confirm that these glowing debris rings are key to understanding black hole behaviour.

The study provides a clearer picture of how supermassive black holes consume matter and release energy. With this method, astronomers can now explore similar structures in other galaxies. The findings open new ways to investigate the extreme physics driving some of the brightest objects in the universe.