A replica of Mars lander and rovers on display at a shopping mall in Beijing, China. EPA
A Long March-5 rocket, carrying an orbiter, lander and rover as part of the Tianwen-1 mission to Mars, lifts off from the Wenchang Space Launch Centre in southern China's Hainan Province in 2020. AFP
The Long March 5 Y-4 rocket, carrying an unmanned Mars probe of the Tianwen-1 mission, takes off from Wenchang Space Launch Center in Wenchang, Hainan Province, China. REUTERS
Liu Tongjie, spokesman for China's Mars exploration mission, talks to the media before the launch of Tianwen-1 Mars exploration mission by Long March 5 Y-4 rocket, at Wenchang Space Launch Center in Wenchang, Hainan Province, China. REUTERS
A Long March-5 rocket, carrying an orbiter, lander and rover as part of the Tianwen-1 mission to Mars, lifts off from the Wenchang Space Launch Centre in southern China's Hainan Province. AFP
The Long March 5 Y-4 rocket, carrying an unmanned Mars probe of the Tianwen-1 mission, is seen before the launch at Wenchang Space Launch Center in Wenchang, Hainan Province, China. REUTERS
A Long March-5 rocket is seen at the Wenchang Space Launch Center in south China's Hainan Province, Friday, July 17, 2020. AP
This photo taken on July 17, 2020 shows a Long March 5 rocket being transferred before a planned launch in Wenchang in China's southern Hainan province. AFP
A child whispers to a woman as they visit an exhibition depicting rovers and bio-domes in Mars, in Beijing. AP Photo
A replica of Mars lander and rovers on display at a shopping mall in Beijing, China. EPA
A Long March-5 rocket, carrying an orbiter, lander and rover as part of the Tianwen-1 mission to Mars, lifts off from the Wenchang Space Launch Centre in southern China's Hainan Province in 2020. AFP
The Long March 5 Y-4 rocket, carrying an unmanned Mars probe of the Tianwen-1 mission, takes off from Wenchang Space Launch Center in Wenchang, Hainan Province, China. REUTERS
Liu Tongjie, spokesman for China's Mars exploration mission, talks to the media before the launch of Tianwen-1 Mars exploration mission by Long March 5 Y-4 rocket, at Wenchang Space Launch Center in Wenchang, Hainan Province, China. REUTERS
A Long March-5 rocket, carrying an orbiter, lander and rover as part of the Tianwen-1 mission to Mars, lifts off from the Wenchang Space Launch Centre in southern China's Hainan Province. AFP
The Long March 5 Y-4 rocket, carrying an unmanned Mars probe of the Tianwen-1 mission, is seen before the launch at Wenchang Space Launch Center in Wenchang, Hainan Province, China. REUTERS
A Long March-5 rocket is seen at the Wenchang Space Launch Center in south China's Hainan Province, Friday, July 17, 2020. AP
This photo taken on July 17, 2020 shows a Long March 5 rocket being transferred before a planned launch in Wenchang in China's southern Hainan province. AFP
A child whispers to a woman as they visit an exhibition depicting rovers and bio-domes in Mars, in Beijing. AP Photo
A replica of Mars lander and rovers on display at a shopping mall in Beijing, China. EPA