People watch as leaflets dropped by the Israeli military, urging evacuation south to al-Mawasi, land in Gaza City on September 9, 2025. The Israeli military said on Tuesday that it will act with “greater force” in Gaza City and warned residents to flee, in a statement posted on X. Israel has been intensifying its bombardment of the city in preparation for an operation to take control of it, despite repeated entreaties from Western nations and aid agencies to stop. (Photo by Omar Al-Qattaa/AFP Photo)

On October 31st, 2025, when the weather was in full autumn, citizens visiting the Taehwagang National Garden Chrysanthemum Garden in Nam-gu, Ulsan, are making memories among the chrysanthemums turning yellow. (Photo by Kim Dong-hwan)

Beatriz Hatz, of the U.S., competes at Women's Long Jump -T64 final at the Stade de France stadium, during the 2024 Paralympics, Saturday, August 31, 2024, in Paris, France. (Photo by Emilio Morenatti/AP Photo)

Faces adorn crosses placed in the Garden of Remembrance of some of Britain's armed forces members who have died in Afghanistan in the Garden of Remembrance outside Westminster Abbey at the official opening of the Royal British Legion's Field of Remembrance on November 5, 2009 in London, England. (Photo by Alastair Grant-Pool/Getty Images)

An Islamic religious leader and rebel supporter (R) chant to rally rebel fighters awaiting a rumored Libyan Army advance April 11, 2011 between the crucial towns of Ajdabiyah and Brega, Libya. Rebels continued to hold the strategic town of Ajdabiyah a day after NATO air power struck army troops loyal to Libyan ruler Moammar Gaddafi nearby, helping the rebels secure the city. (Photo by Chris Hondros/Getty Images)

Dark clouds bearing down on the city on April 17, 2011 in Foshan, Guangdong Province of China. According to flood control authorities on Monday, gales as strong as 45.5 meters per second, accompanied by hailstorm, cloudburst and strong wind battered cities including Guangzhou, Foshan, Zhaoqing and Dongguan of south China's Guangdong Province on Sunday, has killed at least 17 people and injured 118. (Photo by ChinaFotoPress/Getty Images)

West German police arrest a young man, one of the angry crowd throwing stones at a bus full of Soviet guards making their way to the Soviet War Memorial, 20th August 1962. The crowd were incensed by the death of 18-year-old Peter Fechter, who was shot while trying to cross the Berlin Wall a few days earlier. (Photo by Central Press/Hulton Archive/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)