A mysterious ring of radio light could have been created by a type of massive star with a powerful wind of radiation blowing away its outer layers, according to astronomers who made the discovery with the MeerKAT radio telescope in South Africa.
In 2019, astronomers conducting a survey with the Australian Square Kilometer Array Pathfinder telescope, or ASKAP, noticed several strange rings of radio light, undetectable at any other wavelength of light and with no obvious source. The astronomers called them 'odd radio circles', or ORCs for short.
