13-08-29 For the first time, astronomers have seen the image of a distant quasar（类星体） split into multiple images by the effects of a cloud of ionized gas in our own Milky Way Galaxy. Such events were predicted as early as 1970, but the first evidence fo...

11-06-30 This quasar（类星体） is a vital probe of the early Universe. It is a very rare object that will help us to understand how supermassive black holes grew a few hundred million years after the Big Bang, says Stephen Warren, the study's team leader. Qu...