Astronomers make the largest map of the Universe
Astronomers have created the first and largest map of Universe's large-scale structure based entirely on over 1.47 lakh quasars' positions. Quasars are very bright objects powered by supermassive black holes. These objects are so distant that their light, detected by the telescopes, had left them when the Universe was 3-7 billion years old, even before Earth was formed, scientists said.