NASA used images and data from its Imaging X-ray Polarimetry Explorer (IXPE) and the Chandra X-ray Observatory to produce a symphonic sonification of the supermassive black hole located at the center of the Milky Way. New evidence provided by IXPE suggests Sagittarius A* (Sgr A*) awakened from its slumber around 200 years ago (as we see it)

Source: Hot Hardware – Listen To The Cosmic Melody Of A Black Hole Singing Sweet Songs In Space