Most powerful ‘odd radio circle’ to date discovered

Most powerful ‘odd radio circle’ to date discovered
The most distant and most powerful “odd radio circle” (ORC) known so far has been discovered by astronomers. These curious rings are a relatively newly identified astronomical phenomenon, having been detected for the first time just six years ago. Only a handful of confirmed examples are known—most of which are 10–20 times the size of our Milky Way galaxy.
phys.org
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