Prince Philip, Duke of Edinburgh practicing his bicycle polo technique, Windsor Great Park, Berkshire, 1964. (Photo by Norman Potter/Daily Express/Hulton Archive/Getty Images)

Members of the special operations team conduct a building climbing training in Qinzhou, south China's Guangxi Zhuang Autonomous Region, April 13, 2021. (Photo credit should read Costfoto/Barcroft Media via Getty Images)

People cross waterlogged railway tracks next to a parked passenger train during heavy rains in Mumbai, India, June 9, 2021. (Photo by Hemanshi Kamani/Reuters)

A participant takes part at performance of Mexican dance academy to protest against authorities due not allow freedom of labor union during the celebration of International Dance Day at Palace of Fine Arts (Palacio de Bellas Artes) on April 29, 2021 in Mexico City, Mexico. (Photo by Eyepix/NurPhoto/Rex Features/Shutterstock)

People wade through a flooded street after Typhoon Fung-wong hit Dagupan City, Pangasinan, Philippines, on November 10, 2025. (Photo by Noel Celisn/Reuters)

Google has built its first self-driving car prototypes and hopes to test hundreds more models this summer. If all goes well, the company is planning a pilot program in California over the next few years.

A Republican farmer defending a farm on the outskirts of Irun against Nationalist forces during the Spanish Civil War, 6th September 1936. A comrade lies dead by his side. (Photo by Keystone/Hulton Archive/Getty Images)

Indian folk dancers display ornaments during a break while participating in the first night of Navratri in Gandhinagar, some 30 km from Ahmedabad, on October 13, 2015. Navratri festivities, or Dance Festival of Nine Nights, takes place between October 13-21. (Photo by Sam Panthaky/AFP Photo)