Astronomers have identified an extraordinary galaxy composed almost entirely of dark matter. According to the journal Science, the discovery was made during the analysis of archival images from the Hubble Space Telescope, AzerNEWS reports. By Alimat Aliyeva Astronomers have identified an extraordinary galaxy composed almost entirely of dark matter. According to the journal Science, the discovery was made during the analysis of archival images from the Hubble Space Telescope, AzerNEWS r... [1491 chars]