Two F-15E Strike Eagles wait to receive fuel from a KC-135R Stratotanker during exercise Red Flag 15-1 on their way to Nellis Air Force Base, Nev., Jauary 23, 2015. The F-15s are assigned to the 4th Fighter Wing. U.S. (Photo by Airman 1st Class Aaron J. Jenne/Reuters)

Plants grow on houses in the abandoned fishing village of Houtouwan on the island of Shengshan July 26, 2015. Just a handful of people still live in a village on Shengshan Island east of Shanghai that was once home to more than 2,000 fishermen. Every day hundreds of tourists visit Houtouwan, making their way on narrow footpaths past tumbledown houses overtaken by vegetation. The remote village, on one of more than 400 islands in the Shengsi archipelago, was abandoned in the early 1990s as first wealthy residents then others moved away, aiming to leave problems with education and food delivery behind them. (Photo by Damir Sagolj/Reuters)

Fireworks explode above Singapore's financial skyline at dusk as part of celebrations for the nation's 50th year of independence, Sunday, August 9, 2015, in Singapore. Singapore declared independence on August 9, 1965. (Photo by Wong Maye-E/AP Photo)

Londoners sleep on the platform and on the train tracks at Aldwych Underground station,London, during heavy all night Nazi bombing raids, October 8, 1940. (Photo by AP Photo)

People watch Russian heavy weapons at Tverskaya street during the rehearsal of the Victory Day parade in Moscow, Russia, 04 May 2022. Victory Day is held annually on 09 May and marks the defeat of Nazi Germany in 1945. (Photo by Yuri Kochetkov/EPA/EFE)

A handout photo made available by Jose Juan Rodriguez Rocha, on 17 November 2021 shows lightning over Cumbre vieja Volcano as seen from El Paso, La Palma, Canary Islands Spain, 14 November 2021. The lightning over a volcano is sometimes seen due to the charge of electricity caused by the friction of the expelled particles within the column of ashes and pyroclastic rocks. (Photo by Jose Juan Rodríguez Rocha/EPA/EFE)

Flt Lt James Sainty flew a Typhoon in the final air show of the season at Duxford in Cambridgeshire in September 2021. (Photo by Claire Hartley/Bav Media)

This photo taken on December 2, 2015 shows a lenticular cloud forming as white streaks from airplanes mark the blue sky, in a rare atmospheric phenomena above the town of Gevgelija on December 2, 2015. Lenticular clouds have been regularly confused for UFOs throughout history due to the their smooth, round or oval lens-shaped structure. (Photo by Armend Nimani/AFP Photo)