A WZ-10 attack helicopter performs during Airshow China 2022 at Zhuhai Air Show Center on November 9, 2022 in Zhuhai, Guangdong Province of China. The 14th Airshow China will be held from Nov. 8 to 13. (Photo by Qian Baihua/VCG via Getty Images)

Pilots of the Royal Saudi Air Force Hawks aerobatic team perform during a show in Kuwait City on February 26, 2023 as the Gulf state marks its 62nd Independence Day and 32nd anniversary of the end of the Gulf war with the liberation of Kuwait from Iraqi occupation. (Photo by Yasser Al-Zayyat/AFP Photo)

A graduated cadet bleeds after being hit by a hat tossed in the air, at the end of the 2023 graduation ceremony at the United States Military Academy (USMA), at Michie Stadium in West Point, New York, U.S., May 27, 2023. (Photo by Eduardo Munoz/Reuters)

A kid casts his hand's shadow as kids play with light in “L'art dans la nature, Dali universe” an open air light show at Parc de la Villette in Paris, France on November 19, 2023. (Photo by Gonzalo Fuentes/Reuters)

Clara Macaroni, 3, rests on her father's prize-winning Shorthorn cow before a parade at the opening ceremony for the Rural Society's annual exposition in Buenos Aires, Argentina, Sunday, July 28, 2024. (Photo by Rodrigo Abd/AP Photo)

Tourists fly in hot air balloons over the west bank of the Nile River on January 9, 2025 in Luxor, Egypt. Luxor, which contains the historical city of Thebes, capital of ancient Egypt's pharaohs at the height of their power, is full of pharaonic monuments and other antiquities. (Photo by Ahmad Hasaballah/Getty Images)

“Contrails (short for “condensation trails”) or vapour trails are artificial clouds that are the visible trails of condensed water vapour made by the exhaust of aircraft engines. As the hot exhaust gases cool in the surrounding air they may precipitate a cloud of microscopic water droplets or, if the air is cold enough, tiny ice crystals”. – Wikipedia

Photo: An airplane leaves a vapor trail as it flies in front of he moon on January 17, 2007 above Hanover, Germany. (Photo by Alexander Hassenstein/Getty Images)

A Royal Air Force search and rescue helicopter prepares to leaves RAF Valley as the search continues for the crew of cargo vessel The Swanland which sank off north Wales on November 27, 2011 in Anglesey, Wales. (Photo by Christopher Furlong/Getty Images)