Ceasefire talks resume as negotiators arrive for a second round
Signal Bulletin report
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…
Author not supplied
· Published 15 Oct 2026, 14:58 · Updated 15 Oct 2026, 14:58
Credit: NASA · NASA material is generally not copyrighted; items carrying a third-party or copyright credit are excluded. The NASA logo and insignia are never reused.
NASAX-ray: NASA/CXC/INAF-IRA/A. Botteon et al.; Infrared: UKIDSS-GPS ; Radio: ASTRON/LOFAR; Image processing: NASA/CXC/SAO/N. Wolk
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.
Read more about this discovery.
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
