NASA’s Chandra Breaks Down ‘Treble Clef’s’ Galaxy Cluster Collision
Astronomers have used NASA’s Chandra X-ray Observatory to break down the cause of a remarkable formation of radio waves they have nicknamed the “Treble Clef”…
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APOD: 2026 September 25 – Globular Star Cluster Omega Centauri
APOD Science APOD APOD: 2026 September 25 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the…