A team of researchers have found the first evidence that stars generate a sound of their own — although the result is distinctly otherworldly. At nearly a trillion hertz, the sound generated in the experiment wasn’t something fit for human enjoyment. (The human ear recognizes pitches from 20 to 20,000Hz.)

“One of the few locations in nature where we believe [the above effect] would occur is at the surface of stars,” said the University of York’s Dr. Pasley, who worked with scientists from the Tata Institute of Fundamental Research in Mumbai, India, and the Science and Technology Facilities Council’s Central Laser Facility in Oxfordshire. “When they are accumulating new material, stars could generate sound in a very similar manner to that which we observed in the laboratory — so the stars might be singing — but, since sound cannot propagate through the vacuum of space, no-one can hear them.”