Photo taken on Sept. 11, 2018 shows the starry sky above ruins of Guge Kingdom in Ngari, southwest China's Tibet Autonomous Region. The Ngari area has an average altitude of over 4,000 meters above sea level. (Xinhua/Purbu Zhaxi)
Photo taken on Sept. 11, 2018 shows the starry sky in Ngari, southwest China's Tibet Autonomous Region. The Ngari area has an average altitude of over 4,000 meters above sea level. (Xinhua/Purbu Zhaxi)
Photo taken on Sept. 12, 2018 shows the starry sky in Ngari, southwest China's Tibet Autonomous Region. The Ngari area has an average altitude of over 4,000 meters above sea level. (Xinhua/Purbu Zhaxi)
Photo taken on Sept. 11, 2018 shows the starry sky in Ngari, southwest China's Tibet Autonomous Region. The Ngari area has an average altitude of over 4,000 meters above sea level. (Xinhua/Purbu Zhaxi)