Front-row view reveals exceptional cosmic explosion (IMAGE) Deutsches Elektronen-Synchrotron DESY Caption X-rays from the gamma-ray burst were detected by NASA's Swift satellite in Earth's orbit. Very-high-energy gamma rays entered the atmosphere and initiated air showers that were detected by the H.E.S.S. telescopes from the ground (artist's impression). Credit DESY, Science Communication Lab Usage Restrictions Free use by the media if reporting on the related paper License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.