A motorcycle-taxi driver takes a nap while leaning on his bike along a street in Bangkok, Thailand on February 17, 2019. (Photo by Jewel Samad/AFP Photo)

People in colorful costumes perform acrobatics for drivers waiting at red lights in Nairobi, Kenya on February 20, 2024. (Photo by Gerald Anderson/Anadolu via Getty Images)

Farmers play with mud as they plant rice on “National Paddy Day of Nepal” in Dhading district on June 29, 2024. (Photo by Prakash Mathema/AFP Photo)

General view of festival goers at the main stage on Day 3 of Download festival at Donnington Park on June 12, 2022 in Donnington, England. (Photo by Chris Bethell/The Guardian)

Rocky the cat's recovery from a nerve condition in his legs is coming along swimmingly – thanks to regular hydrotherapy sessions at a 20ft-long swimming pool in United Kingdom in the second decade of March 2022. The two-year-old wears a life vest to help keep him afloat and needs a plastic toy to lure him from one end of the pool to the other. (Photo by Max Willcock/BNPS Press Agency)

Bangladeshi children from Khan Tea garden posing for photos on March 23, 2022 with their faces painted after adorning with colors like Rainbows on the celebration of the annual Hindu festival of colors, known as Holi festival marking the onset of spring. (Photo by Md Rafayat Haque Khan/Eyepix Group/Rex Features/Shutterstock)

Milwaukee Brewers' Andruw Monasterio is douced by Willy Adames while being interviewed by Sophia Minnaert after the 10th inning of a baseball game against the Colorado Rockies Wednesday, August 9, 2023, in Milwaukee. The Brewers won 7-6. (Photo by Morry Gash/AP Photo)

“NASA's Pathfinder, Pathfinder Plus, Centurion and Helios Prototype were an evolutionary series of solar- and fuel-cell-system-powered unmanned aerial vehicles. AeroVironment, Inc. developed the vehicles under NASA's Environmental Research Aircraft and Sensor Technology (ERAST) program. They were built to develop the technologies that would allow long-term, high-altitude aircraft to serve as “atmospheric satellites”, to perform atmospheric research tasks as well as serve as communications platforms”. – Wikipedia

Photo: The solar-electric Helios Prototype flying wing is flies over the Hawaiian islands of Niihau and Lehua during the first solar-powered test flight July 14, 2001 from the U.S. Navy's Pacific Missile Range Facility on Kauai, HI. The 18-hour flight was a functional checkout of the aircraft's systems and performance in preparation for an attempt to reach sustained flight at 100,000 feet altitude later in the summer. (Photo Courtesy of NASA/Getty Images)