Cataloguing the high-energy Universe: the H.E.S.S. Extragalactic Sky Survey
May 2026 The initial phase of H.E.S.S., during which the array consisted of only the four 12-meter telescopes, lasted from 2004 until 2013, when the fifth telescope was added. Over the course of the…
A H.E.S.S. Retrospective on Gamma-Ray Bursts
April 2026 Gamma-ray bursts (GRBs) are the most powerful explosions in the universe, releasing more energy in seconds than our Sun will in its entire lifetime. Since their discovery, understanding the processes that drive…
H.E.S.S.’ most distant blazar: PKS 0346−27
February 2026 A galaxy is said to be active if its central supermassive black hole accretes matter from its environment at a high rate, forming an accretion disk. This accretion of matter onto the…
