Fast radio bursts reveal hidden low-density hot gas spread across the space between galaxies
After a thirty-year search, the missing ordinary — or ‘baryonic’ — matter that scientists predicted ought to be found in the universe has been located. The so-called ‘missing baryon problem’ emerged when cosmologists in the late nineties predicted that 5 per cent of the universe should be made of normal matter. However, when they counted … Read more