Scientists find explanation for huge ‘radio circles’ discovered in space

Sign up to our free weekly IndyTech newsletter delivered straight to your inbox Sign up to our free IndyTech newsletter Sign up to our free IndyTech newsletter SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Scientists think they have found an explanation for vast “radio circles” that have perplexed them for years. Massive stars burn out quickly and when they die, they expel their gas as outflowing winds.” The researchers made the discovery using a set of computer simulations that replicated the size and properties of the vast radio rings, including cool gas that had been found in the centre of the galaxy at their middle. When they did stop, a shock kept pushing high-temperature gas out of those galaxies and created a ring, with another reverse shock sending cool gas back into the galaxy. The findings are reported in a new paper, ‘Ionized Gas Extended Over 40 kpc in an Odd Radio Circle Host Galaxy’, published in the journal Nature.