The return capsule of the Shenzhou-12 manned spaceship is about to land at the Dongfeng landing site in North China's Inner Mongolia Autonomous Region on Sept 17, 2021. (Photo: Xinhua)

The SpaceX Falcon 9 rocket carrying the Inspiration4 crew launches from Pad 39A at NASA's Kennedy Space Center in Cape Canaveral, Florida on Sept 15, 2021. The Inspiration4 mission, the first to send an all-civilian crew to orbit, will venture deeper into space than the International Space Station. (Photo: AFP)

A personal message to a person who died of COVID-19 is written on a small flag that is part of 'In America: Remember,' a public art installation commemorating all the Americans who have died of the coronavirus near the Washington Monument on Sept 17, 2021 in Washington, DC. The concept of artist Suzanne Brennan Firstenberg, the installation includes more than 660,000 small plastic flags planted in 20 acres of the National Mall. (Photo: CFP)

Evacuated people are seen at a temporary relocation site after an earthquake in Jiaming Township of Luxian County, Southwest China's Sichuan Province, Sept 16, 2021. (Photo: Xinhua)

Torchbearer Yang Qian lights the main torch at the opening ceremony of the 14th National Games at the Xi'an Olympic Center Stadium on Sept 15, 2021, in the capital of Northwest China's Shaanxi province. (Photo: Xinhua)

An Indonesian activist from ECOTON (ecological observation and wetland conservation) prepares an installation made with used plastic, including 4,444 bottles, collected from the river in Gresik on Sept 17, 2021, to raise public awareness of plastic waste in rivers and oceans. (Photo: AFP)

Close-up view on a smartphone as a passerby takes a picture of the wrapping of the Arc de Triomphe as part of an art installation by the late artist Christo, on Sept 16, 2021 in Paris, France. His monumental installation envelops the emblematic Parisian monument under a blue and silver fabric of 25,000 square meters. (Photo: CFP)

Typhoon Chanthu brings strong winds and rainstorms to Shanghai on Sept 13, 2021. (Photo: chinadaily.com.cn)

Aerial photo taken on Sept 11, 2021 shows paddy fields in Dahaizi Village of Lyvhua Township, Qianxi City, Southwest China's Guizhou Province. (Photo: Xinhua)

This photograph shows large stone head statues at the archaeological site of Mount Nemrut in Adiyaman, southeastern Turkey, on Sept 17, 2021. This UNESCO World Heritage Site since 1987 is on a 2,134-metre-high mountain including giant 10-meter high, seated statues of King Antiochus I himself surrounded by ancient Gods, including Zeus and Apollo, which was discovered in 1881 by a German engineer. (Photo: AFP)