Vlada Nikolchenko of Ukraine performs with the ribbon during the 36th European Rhythmic Gymnastics Championships in Kyiv, Ukraine, Sunday, November 29, 2020. Athletes from 23 countries participate in the championship in Kyiv. (Photo by Efrem Lukatsky/AP Photo)

People look at the “Dragon de Calais” by Francois Delaroziere and La compagnie La Machine during a rehearsal in the harbour of Calais, France on October 30, 2019. (Photo by Pascal Rossignol/Reuters)

A camel wearing a hat amid a heatwave, looks on, in front of the Great Pyramids of Giza, on the outskirts of Cairo, Egypt on July 19, 2023. (Photo by Mohamed Abd El Ghany/Reuters)

People pose for photos beneath the Hollywood sign on September 25, 2023 in Los Angeles, California. Hollywood is awaiting the final vote on a tentative contract agreement between over 11,000 Writers Guild of America members and Hollywood studios in the nearly 150-day writers strike. (Photo by Mario Tama/Getty Images)

Kimono-clad Japanese young women stand in a train after attending a Coming of Age Day ceremony at Yokohama Arena, in Yokohama, Japan, 13 January 2025. Thousands of participants attended the ceremony of the Coming of Age Day in Yokohama, the day celebrating all those who reached 20 years of age, which is considered adulthood in Japan. (Photo by Franck Robichon/EPA/EFE)

Four men ride a motorbike past sacrificial animals displayed for sale ahead of the Eid al-Adha festival at a livestock market in Sana'a, Yemen, 08 August 2019. Eid al-Adha is the holiest of the two Muslims holidays celebrated each year; it marks the yearly Muslim pilgrimage (Hajj) to visit Mecca, Islam's holiest place. Muslims slaughter a sacrificial animal and split the meat into three parts: one for family, one for friends and relatives, and one for the poor and needy. (Photo by Yahya Arhab/EPA/EFE)

A folk artist gives a fire pot performance at the foot of Ulan Hada volcano group on November 16, 2024 in Ulanqab, Inner Mongolia Autonomous Region of China. A tourism festival themed on ice and snow opened in Ulanqab on November 16, which will last for five months. (Photo by Wang Zheng/VCG via Getty Images)

Wedges of an orange generate enough current and electrical juice – 3.5 volts – to power an LED. The fruit’s citric acid helps electrons flow from galvanized nails to copper wire in this 14-hour exposure. This image was published in September’s Visions of Earth, a trio of photos that appear in each issue of National Geographic. (Photo by Caleb Charland/National Geographic)