With the help of the most advanced astronomical telescope, experts of Nanjing Purple Mountain Observatory have found the trace of the universe in its “juvenile” stage (the high-z universe), which is about 10 billion years ago. The results of the research have been published on Astrophysical Journal, an American academic periodical.
“The light is like the ‘identification card’ of stars, based on which we can have the knowledge of its age and distance,” said Dr. Zheng Xianzhong, a leading scientist of the research. The period about 10 billion years ago witnessed the most dynamic galaxies in the universe when many of the giant galaxies were formed. The light was captured by one of the best observatories in the world, the Hawaii-based Canada-France-Hawaii Telescope, the caliber of which is 3.6 meters. Scientists’ observation lasted for three nights, and they finally captured the light emitted by the young universe 10 billion years ago out of millions of celestial bodies in the sky.
