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Scientists have gained the best view yet of the brightest explosions in the universe: A specialised observatory in Namibia has recorded the most energetic radiation and longest gamma-ray afterglow of a so-called gamma-ray burst to date. The observations with the High Energy Stereoscopic System (H.E.S.S.) challenge the idea of how gamma-rays are produced in these colossal stellar explosions which are the birth cries of black holes, as the international team reports in the journal Science.

United kingdomSouth africaLa palmaCanary islandStefan wagnerVictor franz hessDmitry khangulyanEdna ruiz velascoAndrew taylorLandessternwarte heidelbergSylvia zhuHigh energy stereoscopic systemRikkyo universityGerman federal ministry of educationHelmholtz associationMax planck institute