Alien-themed decorations are seen at the Alien Research Center in Hiko, September 19, 2019. Scores of UFO enthusiasts converged on rural Nevada for a pilgrimage of sorts to the U.S. installation known as Area 51, long rumored to house government secrets about alien life, as law enforcement officials beefed up security around the military base. (Photo by Jim Urquhart/Reuters)

Actress Tiffany Haddish sits on top of two garbage cans after getting shoved down by passerbys with a scraped knee only to have Billy Crystal come to her rescue filming “Here Today” in Brooklyn, New York on October 28, 2019. (Photo by Christopher Peterson/Splash News and Pictures)

American plus-size model and television presenter Ashley Graham is seen outside the today show on October 30, 2019 in New York City. (Photo by Raymond Hall/GC Images)

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)

Australian comedian Barry Humphries, dressed as his most famous character Dame Edna Everage, modelling a stunning Ascot hat based on the Sydney Opera House on June 15, 1976. (Photo by Wesley/Getty Images)

Drunk fresher is helped by students as she falls to the ground on night out at during the alcohol-fuelled Freshers’ Week in Birmingham, United Kingdom on September 18, 2017. Freshers are inducted during Freshers' Week – the first week of the Academic year – one of the busiest and most fun weeks of the year. (Photo by Caters News Agency)

During a break from the rain of Storm Aileen, the leaves of the Virginia creeper begin to take on their Autumn colour at the Tu Hwnt i'r Bont tea room on the banks of the River Conwy at Llanrwst in north Wales on September 13, 2017 in Llandudno, Wales. The cottage named Tu Hwnt i'r Bont (Beyond the Bridge) was built in 1480 and has become a magnet for phtographers and tourists from across the world during Autumn. (Photo by Christopher Furlong/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)