Enlarge / Data from SARAO’s MeerKAT radio telescope data (green) showing the odd radio circles, is overlaid on optical and near infrared data from the Dark Energy Survey. (credit: J. English (U. Manitoba)/EMU/MeerKAT/DES(CTIO)) Astronomers have been puzzling over the nature and origin of rare, mysterious radio circles in space ever since the objects were first […]
