Astronomers have previously theorised that a thick ring of dust, known as a torus, surrounds the supermassive black holes at the centre of huge galaxies

Astronomers have previously theorised that a thick ring of dust, known as a torus, surrounds the supermassive black holes at the centre of huge galaxies
Magnetic fields have been seen to manipulate the material surrounding a black hole by observing the nearby galaxy Cygnus A
Radio observations of Cygnus A show an unusual object near the centre, not shown in prior radio observations.