The objects were spotted by a new generation of radio telescopes, the Australian Square Kilometre Array Pathfinder.
They were discovered while scientists were working to conduct the Evolutionary Map of the Universe (EMU) survey, which aims to map the entire sky.
The astronomers who found the object have named them Odd Radio Circles (ORCs), a name chosen because the scientists otherwise “lack an explanation for their origins.”
Circles are often found in astronomical images and can be a sign of a whole host of different objects.
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