A Ukrainian Army liaison officer Vira, 22, plays with her rat Malyi (Tiny) at her positions near a frontline, in Donetsk region, Ukraine, on March 8, 2024. (Photo by Inna Varenytsia/Reuters)

Soap Bubble Structures by Kym Cox. Bubbles optimise space and minimise their surface area for a given volume of air. This phenomenon makes them a useful tool in many areas of research, in particular, materials science and “packing” – how things fit together. Bubble walls drain under gravity, thin at the top, thick at the bottom, which interferes with travelling lightwaves to create bands of colour. Black spots show the wall is too thin for interference colours, indicating the bubble is about to burst. (Photo by Kym Cox/2019 Science Photographer of the Year/RPS)

A collection of Sir Winston Churchill's wartime cigars, including four Romeo y Julieta Cuban Cigars given to Mr Percy Bower, Manager of the cigar department of his suppliers, the Army and Navy Stores to mark the end of the war, are displayed on January 13, 2012 in London, England. (Photo by Matthew Lloyd/Getty Images)

Belarusian villagers celebrate the Christmas carol rite (Kalyady) in the village of Danilevichy, some 320 km south of Minsk on January 7, 2020. Kalyady is an ancient pagan holiday originally celebrated on winter solstice. Dressed-up people walk from house to house singing, dancing, eating and drinking with their neighbours. (Photo by Sergei Gapon/AFP Photo)

This image made available by the Johns Hopkins University Applied Physics Laboratory on Wednesday, May 31, 2017 depicts NASA's Solar Probe Plus spacecraft approaching the sun. On Wednesday, NASA announced it will launch the probe in summer 2018 to explore the solar atmosphere. It will be subjected to brutal heat and radiation like no other man-made structure before. (Photo by Johns Hopkins University Applied Physics Laboratory via AP Photo)

A Ukrainian serviceman of the 65th mechanized brigade smoke on position of a Soviet-made 2s1 Gvozdyka 120mm howitzer in the Zaporizhia region, Ukraine, 15 November 2023, amid the Russian invasion. Russian troops entered Ukrainian territory in February 2022, starting a conflict that has provoked destruction and a humanitarian crisis. (Photo by Kateryna Klochko/EPA)

Festival-goers take photo inside of Spectra, a seven-story spiral walkway up to a viewing deck, at the Coachella Valley Music and Arts Festival in Indio, California, on April 17, 2022. (Photo by Valerie Macon/AFP Photo)

A fledgling solar system containing deep within it enough water vapor to fill all the oceans on Earth five times, located in our Milky Way galaxy about 1,000 light years from Earth in the constellation Perseus. (Photo by Reuters/NASA/JPL-Caltech)