Women dancing at the disco club Xenon in New York City, USA in 1978. Xenon was a popular disco in Manhattan in the late 1970s and early 1980s. It was the only nightclub popular enough to compete with Studio 54. (Photo by Waring Abbott/Getty Images)

Guests attend preview event for “Candytopia”, the outrageously interactive candy wonderland, opening in San Francisco, USA on September 6, 2018. (Photo by Kelly Sullivan/Getty Images for Candytopia)

US marines watch the mushroom cloud from an atomic explosion rise above the Yucca flats, Nevada during a US nuclear weapons test. (Photo by Keystone/Getty Images). USA, 1945

Mackenzie Brown from the USA warms up on stage prior the final ofthe 47th Prix de Lausanne in Lausanne, Switzerland, 09 February 2019. Launched in 1973, the Prix de Lausanne is an international dance competition for young dancers. The best dancers will be awarded with scholarships granting free tuition in a world-renowned dance school or dance company. (Photo by Valentin Flauraud/EPA/EFE)

Ivanka Trump, Advisor to the US President, attends the “Global Call To Protect Religious Freedom” conference during the 74th Session of the United Nations General Assembly at the United Nations Headquarters, September 23, 2019. President Trump skipped the Climate Action Summit as the United States withdrew from the 2016 Paris Climate Agreemnet. (Photo by Anthony Behar/Sipa USA)

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)

National Beard and Moustache Championships 2015 Just for Men National Beard and Moustache Championships Presented by Hanes X-Temp, 2nd annual event honoring the best facial hair in America, with beardsmen from all over the world invited to compete. Categories include the Dali Moustache and the Full Beard Freestyle The World Beard and Moustache Association (WBMA) Championships have been held biennially since 1995 with the next competition due in 2017 in Kings Theatre, New York, NY, USA on November 7, 2015. (Photo by Dennis Van Tine/ABACAPress)