Arianespace's Ariane 5 rocket with NASA’s James Webb Space Telescope onboard lifts up from the launchpad, at the Europe’s Spaceport, the Guiana Space Center in Kourou, French Guiana, on December 25, 2021. The telescope, the most powerful space observatory ever built, is now tentatively set for launch on Christmas Day, after decades of waiting. An engineering marvel, it will help answer fundamental questions about the Universe, peering back in time 13 billion years. (Photo by Jody Amiet/AFP Photo)





Swiss Guards line up in front of St. Peter's Basilica at the Vatican, Saturday, December 25, 2021. (Photo by Gregorio Borgia/AP Photo)





Faithful take pictures as Pope Francis delivers the Urbi et Orbi Christmas' day blessing from the main balcony of St. Peter's Basilica at the Vatican, Saturday, December 25, 2021. (Photo by Gregorio Borgia/AP Photo)





Pope Francis looks at the crowd after delivering the Urbi et Orbi (Latin for “to the city and to the world”) Christmas' day blessing from the main balcony of St. Peter's Basilica at the Vatican, Saturday, December 25, 2021. (Photo by Gregorio Borgia/AP Photo)





Flowers are seen next to a portrait of South African anti-apartheid icon Desmond Tutu outside St. George's cathedral in Cape Town on December 26, 2021, after the news of Tutu's passing. South African anti-apartheid icon Desmond Tutu, described as the country's moral compass, died on December 26, 2021, aged 90, President Cyril Ramaphosa said. (Photo by Gianluigi Guercia/AFP Photo)





Two artists wear masks as they participate in a demonstration of people in the arts in Brussels on Sunday, December 26, 2021. Belgian performers, cinema operators, event organizers and others joined together Sunday to protest the government's decision to close down the country's cultural life to stem the spread of the surging omicron virus variant. Gluhwein refers to a common drink which is served at Christmas markets. (Photo by Virginia Mayo/AP Photo)





A dog wears a sign which reads “Grrr” as it stands with a protestors during a demonstration in Brussels on Sunday, December 26, 2021. (Photo by Virginia Mayo/AP Photo)





A student has his temperature checked as he arrives at a venue prior to a grade 12 exam at a school in Phnom Penh, Cambodia, 27 December 2021. The Ministry of Education, Youth and Sports required all grade 12 students to have temperature checks one day before the exam and wearing the necessary protective masks during the examinations in order to prevent the spread of the fast-spreading Covid-19 Omicron variant. (Photo by Mak Remissa/EPA/EFE)





Hospital worker Houda Mokrani takes a selfie with her colleagues on christmas day in the COVID-19 intensive care unit at the la Timone hospital in Marseille, southern France, Friday, December 25, 2021. Marseille’s La Timone Hospital, one of France’s biggest hospitals, has weathered wave after wave of COVID-19. (Photo by Daniel Cole/AP Photo)





People wait in line to receive a “Jingle Jab” Covid vaccination booster injection at the Good Health Pharmacy, north London, Saturday December 25, 2021. Thousands of people across England are spending a few minutes of Christmas Day to line up under leaden winter skies to be vaccinated against COVID-19 as the omicron variant fuels a surge in infections across the country. The Good Health Pharmacy in north London is one of dozens of vaccination sites that kept their doors open Saturday to administer “jingle jabs” amid a government push to offer booster shots to all adults by the end of the year. (Photo by Gareth Fuller/PA Wire via AP Photo)





A person takes a COVID-19 test in Times Square as the Omicron coronavirus variant continues to spread in Manhattan, New York City, U.S., December 26, 2021. (Photo by Andrew Kelly/Reuters)





A man tries to recover furniture through the window of his house due to flooding caused by intense rains in the city of Itapetinga, in the southern region of the state of Bahia, Brazil, Sunday, December 26, 2021. The Bahia state government's press office said heavy rains have caused floods that have killed 18 people and affected more than 30 cities since early November, forcing more than 4,000 from their homes and complicating access to some communities. (Photo by Manuella Luana/AP Photo)





Patrick Corkery wears a santa hat and beard as waves crash over him during a Christmas Day dip at Sandy Cover near Dublin, Ireland, Saturday, December 25, 2021. (Photo by Niall Carson/PA Wire via AP Photo)





Swimmers react after their traditional Christmas swim in the Vltava river, on Boxing Day on December 26, 2021, in Prague. (Photo by Michal Cizek/AFP Photo)





Hundreds of daring swimmers have braved freezing cold water for a festive dip on Christmas Day, December 25, 2021. In a tradition more than 50 years old, Cornwall residents stripped down to their swimsuits for an icy dip into the Atlantic. (Photo by PA Wire Press Association)





Bikers wearing Santa Claus costumes ride their bikes during a Santa Claus parade as they travel to a children's hospital to deliver toys to patients in Belgrade, Serbia, Sunday, December 26, 2021. (Photo by Darko Vojinovic/AP Photo)





Revellers make the most of Boxing Day in Liverpool city centre, United Kingdom on Sunday, December 26, 2021. Boxing Day is a holiday celebrated after Christmas Day, occurring on the second day of Christmastide. (Photo by London News Pictures)





Bare legs, strappy sandals, and tiny dresses is the dress code for girls in Newcastle, United Kingdom on Sunday, December 26, 2021. Glammed up Brits hit the clubs on Boxing Day night amid fears it could be one of the last opportunities to get dressed up for a while amid New Year lockdown concerns. (Photo by Newcastle New Projects)





Britain's Kate, Duchess of Cambridge, performs at a Christmas carol concert at Westminster Abbey in London. Scottish singer Tom Walker praised the piano skills of the Duchess of Cambridge after the pair recorded a Christmas tune shown during a carol concert on Christmas Eve. Walker, 30, performed a new song, “For Those Who Can’t Be Here”,’ accompanied by Kate playing the piano, in a pre-recorded segment shown during the concert broadcast on ITV on Friday. Walker said he had kept the performance a secret, even from his mother. (Photo by Alex Bramall via AP Photo)





The opening of a winter festival in front of the Main Cathedral of the Russian Armed Forces in Patriot Military Park in the town of Kubinka in Moscow Region, Russia on December 25, 2021. (Photo by Mikhail Tereshchenko/TASS)