Scientists have spotted a new kind of signal in space- four strange, circular objects. Three are particularly bright around their edges, like rings, or bubbles. And they have no idea what they are.

There's something unusual lurking out in the depths of space: Astronomers have discovered four faint objects that at radio wavelengths are highly circular and brighter along their edges. And they're ...

Use left and right arrow keys to seek audio. A paper on the objects titled "MeerKAT uncovers the physics of an Odd Radio Circle" has been accepted for publication into the Monthly Notices of the Royal ...

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Astronomers are baffled about four objects that were spotted in deep space by massive radio telescopes, reports said. LiveScience.com reported on Thursday that the highly circular objects that appear ...

There's something unusual lurking out in the depths of space: Astronomers have discovered four faint objects that at radio wavelengths are highly circular and brighter along their edges. And they're ...