American model Emily Ratajkowski attends Game 5 of the NBA Playoffs, New York Knicks v Atlanta Hawks at Madison Square Garden in New York, USA on June 2, 2021. (Photo by Startraks Photo/Rex Features/Shutterstock)

A racegoer reacts to picking a winner in the first race on the third day of the Royal Ascot horserace meeting, which is traditionally known as Ladies Day, at Ascot, England Thursday, June 17, 2021. (Photo by Alastair Grant/AP Photo)

A Taliban fighter poses for a picture holding a flower before offering Friday noon prayers in Kabul, Afghanistan on October 1, 2021. (Photo by Bulent Kilic/AFP Photo)

A customer plays “Red Light, Green Light” game from the Netflix show “Squid Game” at Strawberry Cafe in Jakarta, Indonesia, October 15, 2021. (Photo by Ajeng Dinar Ulfiana/Reuters)

Wrestlers compete during a traditional Sindhi Malakhra wrestling during a local tournament in Pakistan's port city of Karachi on December 3, 2021. (Photo by Rizwan Tabassum/AFP Photo)

Leilani Franco has made it into the Guinness Book of World Records for the fastest human backbend walk, traveling in a backbend position a distance of 20 meters (65 ft 7.2 in) in a time of 10.05 seconds. (Photo by PA Wire)

“A fter the former Soviet Union conducted its first nuclear test in August 1949, the US reevaluated its postwar defense policies. With the US monopoly on atomic weapons broken, military and political leaders chose to diversify the American stockpile by developing thermonuclear and tactical nuclear weapons. One of the more interesting concepts to come out of this period was atomic artillery, which was successfully tested at the Nevada Proving Grounds (now the Nevada Test Site) in May 1953”. – Alan Carr. Photo: Atomic Annie at work during the Upshot-Knothole test series, 1953. (Photo by Los Alamos National Laboratory/US Army)

These two young siblings appear to cling on to a tree for dear life and even hold hands as they learn the ropes of climbing, on June 25, 2013. (Photo by Tim Fitzharris/Minden/Solent)