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Chandra Finds Possible Origin of ‘Treble Clef’ Waves

A composite image of a remarkable radio wave formation that strongly resembles a treble clef musical symbol, hovering in the midst of two colliding galaxy clusters. Here, galaxies in the galaxy clusters, plus foreground and background stars and galaxies, blanket the image with specks of light set against the blackness of space. At the center of the frame is a large, oval, blue-purple cloud with ragged edges. In the middle of the purple field, tilting slightly to our left, is what appears to be a giant treble clef, loosely drawn with a neon pink marker. Like the musical notation for which it's named, the formation has a strong vertical stroke with a continuous, fluid line swooping back and forth as it moves from top to bottom.
X-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

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NASA’s Space X CRS-35 Launch Jellyfish

The exhaust plumes of a SpaceX Falcon 9 rocket carrying the company’s Dragon spacecraft are seen illuminated by sunlight against the predawn sky.
NASA/John Kraus

Sunlight illuminates the exhaust plumes of a SpaceX Falcon 9 rocket carrying the company’s Dragon spacecraft on Oct. 13, 2026. This visual phenomenon is known as a “jellyfish”; it happens near sunrise or sunset when the exhaust plume from the rocket becomes brightly illuminated, creating a glowing shape resembling a jellyfish.

The mission lifted off at 6:33 a.m. EDT from Space Launch Complex 40 at Cape Canaveral Space Force Station, carrying scientific investigations, supplies, and equipment to the International Space Station on SpaceX’s 35th commercial resupply services mission for NASA. The rocket’s exhaust plumes were visible across the eastern United States.

Watch the uncrewed Dragon spacecraft rendezvous with and dock to the International Space Station on Oct. 15. Coverage begins at 9:15 a.m. EDT.

Image credit: NASA/John Kraus

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