From the European Southern Observatory at Paranal Chile: Astronomers have found that young galaxies are surprisingly magnetic. Early in the Universe's history, these galaxies already had strong magnetic fields. This will force a rethink of how galaxies, including the Milky Way, first formed.
Quasars are extremely bright objects that predate the galaxies. By observing distant quasars, astronomers found that their light had passed through magnetic fields. These fields corresponded to the locations of galaxies. When the Universe was only 1/3 its present age, the magnetic fields were as strong as they are today. The results appear in the July 17 issue of NATURE.
We must ask, what caused the fields in the first place? Every galaxy ever examined contains at its centre a supermassive Black Hole. This singularity causes huge magnetic fields to form in its vicinity. If the field billions of years ago was just as strong, the Black Hole must have been just as big. Rather than growing along with the galaxy, the Black Hole was supermassive from the start. The quasars, even older, contained giant Black Holes when the Universe was extremely young.
More and more evidence indicates that supermassive Black Holes are primordial, formed from quantum fluctuations shortly after the Big Bang. Previously scientists thought that Primordial Black Holes were tiny because of the speed of light. Size of a PBH is limited by a horizon distance within light's reach. The supermassive Black Holes within galaxies, including ours, indicate a changing speed of light.