A robot from AgiBot is seen during the Global Developer Conference, organized by the Shanghai AI Industry Association, in Shanghai on February 21, 2025. (Hector Retamal via Getty Images)
From a balcony in the Ministry of Health Building in London, Prime Minister Winston Churchill addresses a huge crowd on May 8. 1945 (Victory in Europe Day). (Getty Images)
The Air Force Research Laboratory’s XQ-67A Off Board Sensing Station, or OBSS, takes its maiden flight on February 28, 2024, from Gray Butte Field Airport in Palmdale, California. (DVIDS)
Wild peach and apricot flowers are in full bloom in Yanqing District, encircling the Longquanyu Great Wall on March 25, 2025, in Beijing. (Hao Jihong via Getty Images)
A gas well drill is seen at Campo Maripe, a field claimed by the Mapuche indigenous community, in Anelo, Argentina, on November 27, 2019. (Getty Images)
Russian President Vladimir Putin and Chinese President Xi Jinping attend a festive reception for foreign leaders attending celebrations of Victory Day on May 9, 2025. (Getty Images)
A Saildrone Explorer unmanned surface vessel and the guided-missile destroyer USS Delbert D. Black (DDG 119) operate in the Arabian Gulf on January 8, 2023. (US Navy photo by Mass Communication Specialist 2nd Class Jeremy R. Boan)
United States President Joe Biden speaks about artificial intelligence, in the Roosevelt Room of the White House in Washington, DC, on July 21, 2023. (Andrew Caballero-Reynolds/AFP via Getty Images)
A Blue Water Logistic Unmanned Areal System on the flight deck of the fleet replenishment oiler USNS Patuxent while the ship was underway in the Atlantic Ocean on June 10, 2023. (John Bruening via DVIDS)
Research and Development Gallery at the National Museum of the US Air Force offers visitors the opportunity to view the world’s only remaining XB-70 at the Wright-Patterson Air Force Base in Ohio on June 17, 2021. (Tyler Greenlees via DVIDS)