“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)

Sergey, one of the participants of PARTISAN courses, poses for a portrait in an abandoned building in Olgino, St. Petersburg, Russia on November 23, 2016. Sergey came to St. Petersburg from the city of Cheliabinsk to attend an intensive seven-day program. Sergey is a businessman, a traveller and a blogger. His another passion are “men's hobbies”, that's why he participated in the paramilitary courses. (Photo by Alexander Aksakov/The Washington Post)

Young gorillas monkey around with zoo visitors, sticking their tongues out and pressing their faces against the glass, February 2025. Mobi, 1, and Gaia, 10 months, are half sisters and often push each other away at the glass to get the attention of their observers at the Prague Zoo. (Photo by Lucie Stepnickova/Solent News & Photo Agency)

Revellers brave the rain as they make the most of New Year's Eve in Liverpool city centre, UK on December 31, 2024. (Photo by Ioannis Alexopoulos/London News Pictures)

A member of the Revolutionary Armed Forces of Colombia (FARC) pose for a picture at a camp in the Colombian mountains on February 2005. (Photo by Frank Piasecki Poulsen)

Kenyan-Mexican actress Lupita Nyong'o attends the 76th Annual Tony Awards in New York City, U.S., June 11, 2023. (Photo by Amr Alfiky/Reuters)

South African singer Tyla, centre, and British editor Anna Wintour, right, attend the Chanel Fall/Winter 2025-2026 Womenswear collection presented Tuesday, March 11, 2025. in Paris. (Photo by Scott A Garfitt/Invision/AP Photo)

Behind the scenes at Rock it Out, a circus show fusing live music and death-defying stunts in West Thurrock, Essex on April 10, 2025. They will attempt a British first: a double somersault on a rotating wheel. (Photo by Jeff Moore)