Vaccinators wear protective masks as they get their temperature checked, during an anti-polio campaign, in a low-income neighborhood as the spread of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan on July 20, 2020. (Photo by Akhtar Soomro/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)

Brazilian model Alessandra Ambrosio poses for photographers upon arrival at the opening ceremony and the premiere of the film “Jeanne du Barry” at the 76th international film festival, Cannes, southern France, Tuesday, May 16, 2023. (Photo by Scott Garfitt/Invision/AP Photo)

A woman jumps over a puddle of rainwater in north London on August 2, 2023. Met Office has issued a yellow severe weather weather for heavy downpours, strong winds and thunderstorms throughout today in London, and in many other parts of England and Wales. (Photo by Dinendra Haria/London News Pictures)

Rita Ora's sister Elena has shown off her model looks while in Ibiza in the second decade of August 2023. (Photo by elenaora/Instagram)

American singer-songwriter Billie Eilish in the last decade of October 2023 partners with Gucci to advocate for animals and gives us something to contemplate. (Photo by Instagram)

A demonstration on March 15, 1922 on Palace Roof, 57th Street and 7th Avenue, showing the shellproof steel jacket. Leo Krause wearing the jacket, which weighs 12 pounds. Shots used, 38 and 45 calibre, at close range. (Photo by Bettmann Archive)

American actress and social media personality Madelaine Petsch in the last decade of April 2024 has the “best night” of her life at an ABBA performance. (Photo by madelame/Instagram)