A bomb-laden Su-25 jet at the Hmeimim air base in December 2015. Russia's lease agreement obliged Assad’s military to safeguard the perimeter of the Hmeimim base, while giving Moscow legal jurisdiction over the facilities inside. Negotiating perimeter protection from Syria’s new rulers will be vital for the Russian bases in an era of wire-controlled drones immune to jamming. (Photo by AP Photo)

Revellers participate in a colourful “flour war”, celebrating the “Ash Monday” or “Clean Monday”, a traditional festivity marking the end of the carnival season and the start of the 40-day Lent period until the Orthodox Easter, in the town of Galaxidi, Greece, on March 18, 2024. (Photo by Louisa Gouliamaki/Reuters)

American actress Emma Stone uses her mobile phone to touch up her makeup during the 96th annual Academy Awards ceremony at the Dolby Theatre in the Hollywood neighborhood of Los Angeles, California, USA, 10 March 2024. The Oscars are presented for outstanding individual or collective efforts in filmmaking in 23 categories. (Photo by Caroline Brehman/EPA/EFE)

Wedges of an orange generate enough current and electrical juice – 3.5 volts – to power an LED. The fruit’s citric acid helps electrons flow from galvanized nails to copper wire in this 14-hour exposure. This image was published in September’s Visions of Earth, a trio of photos that appear in each issue of National Geographic. (Photo by Caleb Charland/National Geographic)

Miss Universe contestants Laurien Angelista, of Curacao, left, Yasmin Verheijen, of the Netherlands, and Kaci Fennell, of Jamaica, walk in the pool during the Yamamay swimsuit runway show, Wednesday, January 14, 2015, in Doral, Fla. The Miss Universe pageant will be held January 25 in Miami. (Photo by Lynne Sladky/AP Photo)

Jennifer Oeser of Germany competes in the Women's Heptathlon Long Jump on Day 8 of the Rio 2016 Olympic Games at the Olympic Stadium on August 13, 2016 in Rio de Janeiro, Brazil. (Photo by Alexander Hassenstein/Getty Images)

A rainbow appears as people enjoy a warm afternoon on a tour boat at Niagara Falls in Ontario, Canada on October 21, 2024. (Photo by Mert Alper Dervis/Anadolu via Getty Images)

A protester blows bubbles at police during protests at the Land Forces 2024 arms fair in Melbourne on September 12, 2024. (Photo by William West/AFP Photo)