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LiveScience
LiveScience
Jamie Carter

Giant 'diamond ring' sparkles 4,500 light-years away in the Cygnus constellation — Space photo of the week

Cygnus NASA Earth
A glowing gas ring in green and red colors in outer space.
QUICK FACTS

What it is: A 'cosmic ring' — an expanding gas bubble of ionized carbon.

Where it is: 4,500 light-years away in the constellation Cygnus (the swan).

When it was shared: Nov. 17, 2025

This striking image reveals a glittering cosmic formation dubbed a "diamond ring" — a vast, glowing structure of gas and dust appearing as a circular loop with a bright clump on one side.

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