The gamma-ray image of the galactic centre region taken by H.E.S.S. Click to enlarge Astrophysicists using the H.E.S.S. gamma-ray telescopes, in Namibia, have announced the detection of very-high-energy gamma rays from huge gas clouds known to pervade the centre of our Galaxy. These gamma rays are expected to result from the even more energetic cosmic-ray … Continue reading "Gamma-ray Afterglow reveals Pre-Historic Particle Accelerator"