An article published in the journal “Nature Astronomy” reports a study on stars of a particular type since they’re much smaller than the Sun but much hotter and therefore blue. A team of researchers led by Yazan Al Momany of the Italian National Institute of Astrophysics, Padua, used various instruments on ESO’s Very Large Telescope (VLT) and NTT (New Technology Telescope) in Chile to study stars of that type discovering the equivalent of sunspots but even three thousand times larger in size. In some of these spots, flares have been observed that are millions of times more intense than the Sun’s which indicate the presence of very intense magnetic fields.