A man salts a downtown sidewalk in Washington, Thursday, March 5, 2015, as snow begins to fall. The U.S. federal government said its offices in the Washington area will be closed Thursday because of a new round of winter weather expected in the region. The Office of Personnel Management said non-emergency personnel in and around Washington were granted excused absences for the day. Emergency employees and telework-ready employees were expected to work. (AP Photo/Andrew Harnik)

A tourist catches snowflakes on her tongue during snow fall in Times Square, Midtown, New York, on January 3, 2013. A major snowstorm producing blizzard-like conditions hammered the northeastern United States on Friday, causing more than 1,000 U.S. flight delays and cancellations, paralyzing road travel, and closing schools and government offices. (Photo by Darren Ornitz/Reuters)

Most people know Nikon as a purveyor of pro and consumer-grade digital cameras. But the company's expertise with optics bleeds over into related markets – it's one of the science community's major suppliers of microscopes. And each year the company asks the community to send it some of their favorite images of tiny objects. A panel of scientists and journalists have chosen the best of this past year's submissions, which Nikon has placed on its Small World site.

Photo: Honorable Mention. “Snow crystal, illuminated with colored lights (5x)”. (Photo by Dr. Kenneth Libbrecht, California Institute of Technology (Caltech), Department of Physics, Pasadena, California, USA)

A shepherd rides a donkey as he leads sheep during winter in Van, Turkiye on February 19, 2022. Despite the terrible winter weather and the hard geology of the region, breeders in Van's Gurpnar district, where livestock is the most important source of revenue, do not disregard the care of their animals. Livestock farmers in the Cepkenli and Topcudegirmeni neighborhoods have the similar difficulties as those in rural areas, where the snow depth reaches one meter. (Photo by Ozkan Bilgin/Anadolu Agency via Getty Images)

Revellers hit the town on Saturday, February 19, 2022 for a pub crawl despite the snow in Leeds, United Kingdom. The UK capital was placed under its first ever “red” weather warning, meaning there is “danger to life”. The same level of alert was in place across southern England and South Wales, where schools were closed and transport paralysed. (Photo by Nb press ltd)

A heifer, tied with a rope, turns during “Toro de Cuerda” in the white village of Villaluenga del Rosario, southern Spain September 3, 2016. Dazzling clusters of cube-shaped houses perched on top of Andalusia's olive tree-studded mountains, the “Pueblos Blancos”, or white villages, of southern Spain are named for the lime wash the buildings are painted with to keep the interiors cool. The labyrinths of narrow alleyways are a throwback to when this region was known as Al-Andalus and was part of a medieval Muslim territory. While this region is stunningly beautiful and a big draw to tourists visiting the south of Spain, it is also one of the poorest areas in the country and has one of the highest unemployment rates in the European Union. (Photo by Marcelo del Pozo/Reuters)

Wat Rong Khun (Thai: วัดร่องขุ่น), more well-known among foreigners as the White Temple, is a contemporary unconventional Buddhist temple in Chiang Rai Province, Thailand. It was designed by Chalermchai Kositpipat in 1997.

Pope John Paul II (1920–2005) is shot by would-be assassin Mehmet Ali Agca in St Peter's Square, 13th May 1981. His attendants help him into his white jeep after the incident. (Photo by Keystone/Hulton Archive/Getty Images)