Pigeons cool down at a public fountain on a hot summer day at University Plaza in downtown Bucharest, Romania, 10 June 2020. Temperatures in Bucharest reached 30 degrees Celsius. (Photo by Robert Ghement/EPA/EFE)

The comet Neowise, or C/2020 F3, is seen in the evening sky above the artwork titled: “Seven Magic Mountains” by artist Ugo Rondinone, Thursday, July 16, 2020, near Jean, Nev., south of Las Vegas. (Photo by John Locher/AP Photo)

Underground dancers dressed in Spiderman costumes perform in the subway of Saint Petersburg late on May 21, 2021. (Photo by Olga Maltseva/AFP Photo)

Ant Burgess practices his freestyle on a jet ski at Blyth beach in Northumberland, on the North East coast on Saturday, April 10, 2021. (Photo by Owen Humphreys/PA Images via Getty Images)

A woman sunbathes, while police patrol nearby, as a meeting of G7 leaders takes place in St. Ives, Cornwall, England, Saturday, June 12, 2021. Leaders of the G7 gather for a second day of meetings on Saturday, in which they will discuss COVID-19, climate, foreign policy and the economy. (Photo by Jon Super/AP Photo)

A worker carries a carp freshwater fish at a breeding site in Iraq's central city of Najaf, on June 13, 2021. (Photo by Ali Najafi/AFP Photo)

Palestinian plain-clothed security officers detain a man during a demonstration in the city of Ramallah in the occupied West Bank, on June 26, 2021, to protest the death of human rights activist Nizar Banat while in the custody of Palestinian Authority (PA) security forces. Thousands of mourners attended on June 25 the funeral of the 43-year-old Banat, a day after he died in custody following his violent arrest by Palestinian security forces, which sparked outrage in the occupied West Bank. He was known for social media videos denouncing alleged corruption within the PA. (Photo by Ahmad Gharabli/AFP Photo)

Poland's Piotr Lisek reacts after competing in the men's pole vault qualification during the Tokyo 2020 Olympic Games at the Olympic Stadium in Tokyo on July 31, 2021. (Photo by Aleksandra Szmigiel/Reuters)