Extreme-energy accelerators in extragalactic outer space

Several billion light years from our Galaxy, blazars are relentlessly accelerating particles to extreme energies. What do we know about these extreme sources of radiation? A team of ten researchers from France (Paris Observatory, IN2P3), Germany (ESO, DESY, University of Munich) and Italy (ASI, INAF) coordinated by Jonathan Biteau (IJC Lab, University Paris-Saclay, CNRS) and … Read more