mei 152012
Black holes turn up the heat for the Universe

  Astrophysicists discover a new heating source in cosmological structure formation. So far, astrophysicists thought that super-massive black holes can only influence their immediate surroundings. A collaboration of scientists at the Heidelberg Institute for Theoretical Studies (HITS) and in Canada and the US now discovered that diffuse gas in the universe can absorb luminous gamma-ray [continue reading]