A curious trio of owl monkeys peep out of a tree hollow on the Marañón River near the city of Nauta, Peru in April 2024. (Photo by James Cai/Solent News)

An F-18 Hornet fighter jet on May 27, 2025 lands and takes off from a highway during Baana 25, a military exercise held by the Finnish air force. (Photo by The Times)

Model Bella Hadid poses for photographers at the photo call for the film “Pain and Glory” at the 72nd international film festival, Cannes, southern France, Friday, May 17, 2019. (Photo by Arthur Mola/Invision/AP Photo)

American model, fashion influencer and social media personality Olivia Culpo puckers up at a Revolve party in the first decade of December 2022. (Photo by oliviaculpo/Instagram)

British model Cara Delevingne presents a creation for L'Oreal Paris show “Walk Your Worth” as part of the Paris Fashion Week Women Ready-to-wear Spring-Summer 2025 collection at Palais Garnier (Opera national de Paris) opera house, in Paris on September 23, 2024. (Photo by Julien de Rosa/AFP Photo)

American actress Vanessa Hudgens attends Beyoncé's “Renaissance” concert in Los Angeles on September 4, 2023. (Photo by vanessahudgens/Instagram)

“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)

Bella Hadid attends “The Unknown Girl (La Fille Inconnue)” Premiere during the 69th annual Cannes Film Festival at the Palais des Festivals on May 18, 2016 in Cannes, France. (Photo by Alberto Pizzoli/AFP Photo)