Astronomers reveal clearest image yet of mysterious 'odd radio circle' - Daily Mail

There are now three leading theories about what causes 'odd radio circles' thanks to the new images captured by the South African Radio Astronomy Observatory's MeerKat radio telescope.

They are astronomy's newest mystery objects, 'odd radio circles' a million light years across that were first spotted two years ago. Now, using the world's most capable radio telescopes, astronomers… [+6222 chars]

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