Train attendants take part in a parade training as they visit the national flag guard during a patriotic education event ahead of the 90th anniversary of the founding of the Chinese People's Liberation Army (PLA) in Beijing, China July 25, 2017. (Photo by Reuters/China Stringer Network)

Divers wearing mermaid costumes take part in the first Chinese Mermaid Performance Contest at Atlantis resort on December 21, 2021 in Sanya, Hainan Province of China. (Photo by Luo Yunfei/China News Service via Getty Images)

A Chinese tourist visits the Mutianyu Great Wall covered in snow on February 23, 2021 in Beijing, China. Affected by the new coronavirus (COVID-19), the number of visitors to Mutianyu Great Wall in 2020 dropped by about 60%. (Photo by Lintao Zhang/Getty Images)

Sydney Peng, 19, who has been dancing for eleven years, performs a Chinese opera dance in celebration of the Lunar New Year, in the rotunda of the Mall of America in Bloomington, Minn., on Sunday, January 22, 2023. (Photo by Richard Tsong-Taatariii/Star Tribune via AP Photo)

Rachel Zegler, right, a cast member in “The Hunger Games: The Ballad of Songbirds & Snakes”, shoots a selfie with fellow cast members Tom Blyth, left, and Hunter Schafer at the Los Angeles premiere of the film, Monday, November 13, 2023, at the TCL Chinese Theatre. (Photo by Chris Pizzello/AP Photo)

View from the Insta360 360 degree camera in the last decade of November 2023 attached to a satellite launched 500km into outer space. Chinese firm Insta360 say they have achieved “the first fully exposed camera in space” a feat which required a lot of preparation to get X2 ready for the harsh environment. (Photo by South West News Service)

The lightest material ever made has been produced by a team of scientists in China, a Chinese university announced.