Where are you HESS J1652−462?
December 2022 A large fraction of all astronomical objects so far discovered in the VHE gamma ray band are concentrated in the Galactic plane, i.e. they are projected against the belt referred to as…
20th anniversary
November 2022 The first of the now five HESS telescopes was completed (telescope, mirrors, camera) in the first half on 2002 and commissioning started promptly. In September 2002 this telescope was inaugurated. The construction…
Home office for telescope operators
October 2022 In the last few years, many people have adjusted to working remotely. If you have a desk job, then sometimes all you need is a computer and a stable internet connection. But…
Probing thermal-relic dark matter with the Inner Galaxy Survey
September 2022 Something is wrong when we look at galaxies in space, because the formation of the entire structure and the way billions of stars run through space cannot be explained by visible matter…
The biggest cluster blows an energetic bubble
August 2022 For more than 100 years, it is known that cosmic rays (charged particles) are accelerated to extremely high energies somewhere in the Milky Way. And yet, we have still not uncovered their…
Moonlight observations with H.E.S.S.
July 2022 A dark night has become a rare sight in most parts of the world. Those who experience it – far away from regions inhabited by humans – quickly realize that the moonless…
MRC 0910-208: A moderate extremist
June 2022 Most of the gamma-ray sources outside our Milky Way are active galactic nuclei. These galaxy centers outshine their entire host galaxies including all stars. One of the first ones to be studied…
The beginnings of H.E.S.S.
May 2022 Any large project grows for some time from first ideas to groundbreaking to completion and it is often difficult to define the ‘true’ start. Nonetheless history often considers the first preserved documents…
Filming the evolution of a recurrent nova in the very-high-energy domain
April 2022 In the summer of 2021, the binary star RS Ophiuchi reprised its explosive role as a nova and caused a bright spectacle over the night sky visible to the naked eye. RS…
The latest news from the new star of 1604
March 2022 Supernovae are exploding stars, and they are among the most spectacular explosions in the Universe. For a few days a supernova may outshine all the stars in a galaxy. But supernovae are…