In this Thursday, April 16, 2015 photo provided by Robert MacFarlane, a raccoon climbs up a skyscraper in downtown Toronto. Social media was abuzz Thursday with the photo of the raccoon peering from between the metallic rungs of a crane 58 stories high. (Photo by Robert MacFarlane)

Yang Juan, an employee at Goopal Group, takes a nap in her seat after lunch, in Beijing, China, April 21, 2016. Office workers sleeping on the job is a common sight in China, where a surplus of cheap labour can lead to downtime at work. But in China's technology sector, where business is growing faster than many start-up firms can hire new staff, workers burn the midnight oil to meet deadlines and compete with their rivals. Some companies provide sleeping areas and beds for workers to rest during late nights. (Photo by Jason Lee/Reuters)

Thailand's King Bhumibol Adulyadej in serious portrait January 01, 1960. Thailand's Royal Palace said on Thursday, October 13, 2016, that Thailand's King Bhumibol Adulyadej, the world's longest-reigning monarch, has died at age 88. (Photo by John Dominis/The LIFE Picture Collection/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 polar bear fast asleep at London Zoo. (Photo by Fox Photos/Getty Images). 1961

The world heavyweight boxing champion Joe Frazier, before his fight with Joe Bugner. (Photo by Evening Standard/Getty Images). 18th June 1973

“Kimchi, also spelled gimchi, kimchee, or kim chee, is a traditional fermented Korean dish made of vegetables with varied seasonings. There are hundreds of varieties of kimchi made with a main vegetable ingredient such as napa cabbage, radish, green onions or cucumber. It is the most common banchan, or side dish, in Korean cuisine. Kimchi is also a main ingredient for many popular Korean dishes such as kimchi stew (kimchi jjigae), kimchi soup (kimchiguk), and kimchi fried rice (kimchi bokkeumbap)”. – Wikipedia

Photo: South Korean housewives, among more than two thousand who gathered for an event sponsored by state officials to help the needy, make kimchi, the traditional pungent vegetable dish on the grounds in front of Seoul City Hall on November 20 in Seoul, South Korea. (Photo by Chung Sung-Jun/Getty Images)

Dancers learn choreography they will need to perform as part of an open audition for the 2022 Radio City Rockettes at Radio City Music Hall in New York, New York, USA, 18 April 2022. The open auditions, the first being held since the start of the coronavirus pandemic, were expected to draw nearly 900 dancers competing for one of the few open spots in the 2022 Christmas Spectacular Starring the Radio City Rockettes, a long running holiday show. (Photo by Justin Lane/EPA/EFE)