00:00This is Tianyuan, meaning eye of heaven or sky eye. It is China's fast radio telescope
00:11with the world's largest single dish measuring 500 meters. Located in a deep depression in
00:16southwest China's Guizhou province, the telescope is eight years old. Its job is searching for
00:22radio-emitting stars, or pulsars, interstellar molecules and extraterrestrial intelligence.
00:29Pulsar observation is a vital task for confirming the existence of gravitational radiation
00:34and black holes, and a major upgrade has just been announced. To boost its astronomical
00:39observation capability, 24 smaller telescopes with 40-meter antennas will be built within
00:45five kilometers of the fast site. We think it has nearly reached the limit of the telescope's
00:50capacity. We hope to sustain its leading performance on the international stage for the long term,
00:56enabling Chinese astronomers to continually produce cutting-edge scientific achievements.
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