NASA Astronomy Picture Highlights Unusual X-ray and Radio Source Shaped Like a Treble Clef

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NASA's Astronomy Picture of the Day for October 19, 2026 features an unusual celestial object. The image shows a source that emits both X-ray and radio radiation and takes on a shape resembling a musical treble clef. The entry is part of NASA's daily series that pairs a striking image of the universe with an explanation written by a professional astronomer. The source's unusual appearance makes it a notable subject for observers studying high-energy and radio emissions. Full details of its nature and origin are available in the original APOD explanation.

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