An NHS worker walks past a banner supporting NHS staff outside Salford Royal Hospital on March 22, 2020 in Manchester, UK. Coronavirus (COVID-19) has spread to at least 182 countries, claiming over 13,069 lives and infecting more than 308,592 people. There have now been 5,018 diagnosed cases in the UK and 233 deaths. (Photo by Anthony Devlin/Getty Images)

Young children at a Bristol, Great Britain health centre unsure of the benefits of sun-lamps and the special glasses that must be worn, July 1948. The health centre was part of the newly introduced free National Health Service. (Photo by Popperfoto/Getty Images)

An opposition fighter from the Failaq al-Rahman brigade fires a heavy machine gun in Jobar, a rebel-held district on the eastern outskirts of the Syrian capital Damascus, on March 19, 2017. (Photo by Amer Almohibany/AFP Photo)

Farmers plant rice seedlings in a paddy in Karanganyar, near Solo, Central Java, Indonesia in this April 13, 2016 photo taken by Antara Foto. (Photo by Maulana Surya/Reuters/Antara Foto)

This little kingfisher clearly didn't read the sign when it landed itself a minnow in a no fishing zone. Taxi driver Paul Bird, 52, from Newmarket, Suffolk, UK, captured this amusing moment whilst out looking to photograph kingfishers in Norfolk, an hour drive from his home. Paul explained: “There are a total of six perches the bird was using from which to fish, one of them being the No Fishing sign”. (Photo by Paul Bird/Solent News & Photo Agency)

A staff member demonstrates how she puts on the helmet of a mock space suit at the C-Space Project Mars simulation base in the Gobi Desert outside Jinchang, Gansu Province, China, April 17, 2019. The facility – comprising several interconnected modules including a greenhouse and a mock decompression chamber – opened its doors to the public. (Photo by Thomas Peter/Reuters)

Children play on top of an abandoned car at the “Aguerridos Liberator” shanty town in Caracas, Venezuela, Thursday, May 9, 2019. (Photo by Rodrigo Abd/AP Photo)

ISS Expedition 66 main crew member, actress Yulia Peresild blows a kiss through a bus window as she leaves for the Baikonur Cosmodrome in Kazakhstan on October 5, 2021. The launch of the Soyuz MS-19 mission to be involved in making the feature film “The Challenge” (working title) aboard the International Space Station is scheduled for 5 October 2021 at 11:55 Moscow time from the Baikonur Cosmodrome. (Photo by Sergei Savostyanov/TASS)