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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.
New images show in clearest detail yet the structure of a mysterious explosion in space that's only visible in radio waves.
Astronomers have traced the source of the image to two distant galaxies.
Scanning through data fresh off the telescope, we saw two ghosts dancing deep in the cosmos. We had never seen anything like it before, and we had no idea what they were. Several weeks later, we had figured out we were seeing two radio galaxies, about a billion light years away. In the centre of each one is a supermassive black hole, squirting out jets of electrons that are bent into grotesque shapes by an intergalactic wind. The two galaxies we think are responsible for the streams of electrons (shown as curved arrows) that form the Dancing Ghosts. But we don’t understand wh...
“Planet Earth Report” provides descriptive links to headline news by leading science journalists about the extraordinary discoveries, technology, people, and events changing our knowledge of Planet Earth and the future of the human species. Ghostly Circles in Space Can’t be Explained by Current Theories–Among them was a picture of a strange circle of radio emission, hanging out in space like a cosmic smoke-ring reports astronomer Ray Norris for The Conversation. None of us had ever seen anything like it before, and we had no idea what it was, report scientists examining new i...