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Astronomers discover the most powerful and distant cosmic ring ever seen

Astronomers have found the most distant and energetic “odd radio circle” ever detected — a massive double-ringed radio structure nearly 10 billion years old. The discovery, made with the help of citizen scientists using LOFAR, challenges theories that these cosmic rings are caused by black hole mergers. Instead, researchers suggest galactic superwinds may be to blame.

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Astronomers announce discovery of the most distant and most powerful 'odd radio circle' (ORC) known so far at redshift of ~0.94. It is also only the 2nd ORC discovered with two intersecting rings instead of one

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