An article published in the journal “Nature” reports the detection of an interstellar gas disk around Sagittarius A*, the supermassive black hole at the center of the Milky Way. A team of researchers led by Elena Murchikova of the American University of Princeton found thanks to the ALMA radio telescope the radio emissions of the least hot component of the accretion disk that surrounds Sagittarius A*. By mapping those emissions it was possible to notice that disk’s rotation, another useful piece of data to study the processes taking place around that black hole.