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  • Australian Sky & Telescope

    New radio data reveal possible origins of odd radio circles in the sky

    Jun 08, 2022 2 minutes
    MONICA YOUNG

    GHOSTLY RINGS of radio emission spanning a million light-years, dubbed Odd Radio Circles (ORCs), are a recent discovery. They emit no radiation other than radio waves. And we’re only starting to understand what made them.

    Ray Norris (Western Sydney University) published the

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