Seven-year-old Mimi Meade winces from the sting as Dr. Richard Mulvaney inoculates her April 26, 1954 in McClean, Va., with the new Salk polio vaccine. Mrs. John Lucas, a registered nurse, holds Mimi's arm steady as she gets one of the first injections of the countrywide test. (Photo by Harvey Georges/AP Photo)

His own space suit, with oxygen tank, doesn't make Barney the monkey any happier as he and actor Adam West view the situation in their space capsule in Hollywood on January 24, 1964. Barney, a South American woolly monkey, is blasted into space with West, as an astronaut, in a new movie, “Robinson Crusoe on Mars”. (Photo by AP Photo)

Actors Ma Sichun (L) and Zhou Dongyu pose backstage after both won the Best Leading Actress award for their movie “Soul Mate” at the 53rd Golden Horse Film Awards in Taipei, Taiwan November 26, 2016. (Photo by Tyrone Siu/Reuters)

In this Saturday, February 16, 2019 photo, carnival revelers dressed as characters from the movie “La Casa de Papel” pose for a picture during the “Desliga da Justica” block party in Rio de Janeiro, Brazil. “Desliga” means in Portuguese to turn something off, and this street party is a parody of the Justice League. (Photo by Leo Correa/AP Photo)

A thirty-year-old Dutch demonstrator displays a sign that reads: “Glad to be Gay” during a gay people march in Frankfurt, Germany on Saturday, July 28, 1979 which ended a week long homosexual meeting. Hundreds of homosexual converged for a week of movies, theater, rock concerts and workshops on gay rights. (Photo by Rolf Boehm/AP Photo)

In this photo taken on Wednesday, January 9, 2013, ahead of the Chinese lunar new year of the Snake, following the Chinese zodiac, genetically modified, auspicious, white snakes slither across the altar at the Temple of White Snakes in Taoyuan county, in north western Taiwan. Director of the temple Mr. Lo Chin-shih says the new year of the snake would be a time of steady progress, in contrast to the more turbulent nature of the outgoing year of the dragon. The Chinese new year fall on February 10. (Photo by Wally Santana/AP Photo)

These spectacular pictures show the incredible moment a rare natural phenomenon happens in the night sky. Red sprite lightning lasts only a millisecond and takes place high above a tunderstorm cloud.The breathtaking flashes of light are caused by huge electrical discharges of lightning in the sky. Marko Korosec, 32, was lucky enough to catch these sprites on camera after months of trying. Mr Korosec, from Sezana in Slovenia, took the shots whilst he was following storms in Vivaro, Italy. (Photo by Marko Korosec/Solent News/SIPA Press)