Chandra Reveals How a Galaxy Cluster Collision Formed the Treble Clef Shape

Astronomers using NASA's Chandra X-ray Observatory and Germany's eROSITA telescope found that the Treble Clef radio structure formed when two galaxy clusters collided. A supermassive black hole outburst created a radio cloud that was reignited by the impact, with shock waves shaping its distinctive form.

• The Treble Clef spans millions of light-years and covers two galaxy clusters
• Gas heated to millions of degrees confirms the cluster nature of the structure
• Blue areas show Chandra and eROSITA gas, red marks LOFAR radio waves
• The collision occurred a few hundred million years ago