Zhang Rongqiao (R), chief designer of China's first Mars exploration mission, talks with Wu Weiren (2nd L), chief designer of China's lunar exploration project after China's first Mars rover, Zhurong, driving down from its landing platform to the Martian surface, at the Beijing Aerospace Control Center in Beijing, capital of China, May 22, 2021. China's first Mars rover, Zhurong, drove down from its landing platform to the Martian surface Saturday, leaving the country's first "footprints" on the red planet. Zhurong's first successful drive made China the second country after the United States to land and operate a rover on Mars. (Xinhua/Jin Liwang)