Chandra Finds Possible Origin of ‘Treble Clef’ Waves

A formation of radio waves looks remarkably like a treble clef in this Oct. 14, 2026, image from NASA's Chandra X-Ray Observatory. Researchers used Chandra to A formation of radio waves looks remarkably like a treble clef in this Oct. 14, 2026, image from NASA’s Chandra X-Ray Observatory. Researchers used Chandra to find that the Treble Clef is likely caused by an outburst from a supermassive black hole, followed by a collision of two galaxy clusters.

Image credit: X-ray: NASA/CXC/INAF-IRA/A. Botteon et al.; Infrared: UKIDSS-GPS ; Radio: ASTRON/LOFAR; Image processing: NASA/CXC/SAO/N. Wolk