SpaceWe may have seen a 'dirty fireball' star explosion for the first time An incredibly powerful flash of X-rays spotted by the Einstein Probe telescope appears to be a kind of explosion first theorised more than 30 years ago News
SpaceAstronomers may have glimpsed evidence of the biggest stars ever seen The distant universe might be littered with supermassive stars between 1000 and 10,000 times the mass of the sun, which could solve a cosmic mystery about the origins of extremely large black holes News