Smoke billows from Mt. Etna volcano, as seen from an area near the village of Sant'Alfio, north of Catania, Sicily, southern Italy, Sunday, November 12, 2023. (Photo by Salvatore Allegra/AP Photo)

Philippine actor Soliman Cruz wearing a business suit stands inside an 8-foot transparent bubble while other activists wearing masks touch the bubble during an anti-pollution protest near a park in Manila on April 25, 2025. The protest is part of a climate advocates 350 campaign on Manila's air pollution crisis, due to traffic emissions, fossil fuel and unchecked industrial activity. (Photo by Ted Aljibe/AFP Photo)

A waitress wearing a protective mask and gloves to curb the spread of coronavirus disease (COVID-19) serves a drink for a customer at the Koral restaurant in Nusa Dua, Bali, Indonesia on August 9, 2021. (Photo by Fikri Yusuf/Antara Foto via Reuters)

Ground personnel tend to actress Yulia Peresild after the landing of the Soyuz MS-18 reentry capsule with herself and director Klim Shipenko of the “Vyzov” (The Challenge) film crew as well as Roscosmos cosmonaut Oleg Novitsky on board, in steppes southeast of Jezkazgan, Kazakhstan on October 17, 2021. (Photo by Sergei Savostyanov/TASS)

Performers are seen as a 90-year old spruce tree cut down in the woods of the Shchyolkovsky District in Moscow Region, Russia on December 16, 2021 is sent to Moscow. The almost 28-metre high tree will be put up at the Moscow Kremlin's Sobornaya (Cathedral) Square this New Year and Christmas. (Photo by Vasily Fedosenko/TASS)

Mali supporters cheer ahead of the Group F Africa Cup of Nations (CAN) 2021 football match between Mali and Mauritania at Stade de Japoma in Douala on January 20, 2022. (Photo by Charly Triballeau/AFP Photo)

Now celebrating its 40th year, Nikon Small World is widely regarded as the leading forum to recognize proficiency and photographic excellence of photography taken under the microscope. To select the winners, competition judges analyzed entries from all over the world covering subjects ranging from chemical compounds to up-close-and-personal looks at biological specimens. The 2014 winners will be revealed on October 30th. In 2014, the competition received over 1,200 entries from more than 79 countries around the world. (Photo by Dr. Igor Robert Siwanowicz/Nikon Small World 2014)

Visitors walk past a train-shaped ice sculpture ahead of the 31st Harbin International Ice and Snow Festival in the northern city of Harbin, Heilongjiang province, January 4, 2015. The winter festival will be officially opened on January 5, 2015. (Photo by Kim Kyung-Hoon/Reuters)