American model Kendall Jenner was seen departing the Prunier restaurant in Paris on October 1, 2025 amid Fashion Week for the Spring/Summer 2026 Women's Ready-to-Wear Collection. (Photo by Best Image/BACKGRID)

A model wears a creation for Miu Miu's Spring-Summer 2017 ready-to-wear fashion collection presented Wednesday, October 5, 2016 in Paris. (Photo by Francois Mori/AP Photo)

“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)

Members of contemporary circus group perform inside the subway train, amid the energy crisis in Prague, Czech Republic on March 2, 2023. (Photo by David W. Cerny/Reuters)

Models present creations for Etam during the 2017 Spring/Summer ready-to-wear collection fashion show, on September 27, 2016 in Paris, France. (Photo by Swan Gallet/WWD/Rex Features/Shutterstock)

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)