A girl smiles as her hair is blown by a strong wind in the Chinatown area in Yokohama, near Tokyo, Friday, January 27, 2017. (Photo by Koji Sasahara/AP Photo)

Japan's delegation gather to sign the formal surrender document on the U.S. Navy battleship USS Missouri in Tokyo Bay in a September 2, 1945 file photo. (Photo by Reuters/US Navy)

JAPAN: A businessman stands at a pond in the Kyu-Shiba-rikyu Garden on a warm and sunny day in Tokyo, Japan, March 18, 2016. (Photo by Thomas Peter/Reuters)

People wearing loin cloths pray after they bathe in ice-cold water outside the Teppozu Inari shrine in Tokyo, Japan, January 8, 2017. (Photo by Toru Hanai/Reuters)

A man holding a pet dog walks past blooming cherry blossoms along the Meguro river in Tokyo, Japan, March 27, 2022. (Photo by Kim Kyung-Hoon/Reuters)

A participant in a tiger-themed costume walks during the “bakeneko” or supernatural cat festival as a Halloween parade in the Kagurazaka district of Tokyo on October 13, 2024. (Photo by Philip Fong/AFP Photo)

An athlete takes part in a warm-up around the track of the National Stadium in Tokyo on September 12, 2025, ahead of the World Athletics Championships. (Photo by Kirill Kudryavtsev/AFP 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)