U.S. President Donald Trump boards Air Force One to depart for Vietnam from Beijing Airport in Beijing, China on November 10, 2017. (Photo by Jonathan Ernst/Reuters)

People look at a Christmas tree decorated with colourful lights at a residential compound in Beijing on December 8, 2017. (Photo by Nicolas Asfouri/AFP Photo)

Katy Perry poses backstage during rehearsals for the 2017 MTV Video Music Awards at The Forum on August 25, 2017 in Inglewood, California. (Photo by John Shearer/Getty Images for MTV)

The galactic centre of the Milky Way glows brightly in the clear night sky above the lighthouse at Portland Bill on the Dorset Jurassic Coast, United Kingdom on April 13, 2021. (Photo by Graham Hunt/Alamy Live News)

Women take shelter at a pedestrian overpass during heavy rains caused by Cyclone Tauktae in Mumbai, India, May 17, 2021. (Photo by Niharika Kulkarni/Reuters)

Waiters pose at their terrace of their restaurant rue de Buci in Paris on June 2, 2020, as cafes and restaurants reopen in France, while the country eases lockdown measures taken to curb the spread of the COVID-19 (the novel coronavirus). (Photo by Martin Bureau/AFP Photo)

Greece's Maria Sakkari reacts during her women's singles quarter-final tennis match against Poland's Iga Swiatekon Day 11 of The Roland Garros 2021 French Open tennis tournament in Paris on June 9, 2021. (Photo by Gonzalo Fuentes/Reuters)

Pope Francis meets Spider-Man, who presents him with his mask, at the end of his weekly general audience with a limited number of faithful in the San Damaso Courtyard at the Vatican, Wednesday, June 23, 2021. The masked man works with sick children in hospitals. (Photo by Andrew Medichini/AP Photo)