Chinese surveyors return to the advance camp at an altitude of 6,500 meters on Mount Qomolangma, on May 28, 2020. A Chinese survey team reached the summit of Mount Qomolangma Wednesday, and remeasured the height of the world's highest peak. (Xinhua/Penpa)

Chinese surveyors return to the advance camp at an altitude of 6,500 meters on Mount Qomolangma, on May 28, 2020. A Chinese survey team reached the summit of Mount Qomolangma Wednesday, and remeasured the height of the world's highest peak. (Xinhua/Tashi Tsering)

Chinese surveyors return to the advance camp at an altitude of 6,500 meters on Mount Qomolangma, on May 28, 2020. A Chinese survey team reached the summit of Mount Qomolangma Wednesday, and remeasured the height of the world's highest peak. (Xinhua/Tashi Tsering)