Astronomers have discovered a new, bizarre type of cosmic object, ORC J0102–2450, while using the Australian Square Kilometer Array Pathfinder telescope. The colossal object is now the third odd radio circle (ORC) that is invisible to all wavelengths of light except radio
with an elliptical galaxy at its geometrical center.
The objects appear in radio images as circular edge-brightened discs, observe the researchers. about one arcmin in diameter, that are unlike other objects previously reported in the literature. Astronomers have explored several possible mechanisms that might cause these objects, but none seems to be a compelling explanation.
The strange circular objects in question have been dubbed “Odd Radio Circles” (ORCs); three of them were recently discovered in data captured during a preliminary survey by the Australian Square Kilometer Array Pathfinder, a radio telescope array in Western Australia. A fourth was discovered when researchers sifted through old data from 2013.