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Photos of the week
By Reuters -

Glow-in-the-dark blue waves caused by the phenomenon known as harmful algal bloom, or "red tide," are seen at night near Sam Mun Tsai beach in Hong Kong January 22, 2015. REUTERS/Tyrone Siu

Members of South Korean girl group Gfriend rehearse in Seoul December 23, 2014. Thousands of Korean children dream of becoming household names like rapper Psy, whose 2012 "Gangnam Style" video was a global YouTube hit, often putting up with punishing schedules in the hope of one day making it big in the music industry. A recent survey of pre-teens showed that 21 percent of respondents wanted to be K-pop (Korean pop) stars when they grow up, the most popular career choice. REUTERS/Kim Hong-Ji

Thousands participate in the anti-abortion March for Life past the U.S. Supreme Court building in Washington January 22, 2015. The activists are participating in the 42nd annual march to protest the Supreme Court's 1973 abortion ruling in Roe v. Wade. REUTERS/Jonathan Ernst

Idols installed on a tableau are wrapped in a plastic sheet to protect them from rain during a media preview for the Republic Day parade in New Delhi, January 22, 2015. India will celebrate its annual Republic Day on January 26. REUTERS/Anindito Mukherjee

Artists from the southern Indian state of Telangana, perform during a media preview for the Republic Day parade in New Delhi, January 22, 2015. REUTERS/Anindito Mukherjee

Eugenie Bouchard of Canada takes a "selfie" using a spectator's phone after defeating Kiki Bertens of the Netherlands during their women's singles second round match at the Australian Open 2015 tennis tournament in Melbourne, January 21, 2015. REUTERS/Issei Kato

A United Launch Alliance Atlas V 551 rocket blasts off from Cape Canaveral Air Force Station in Florida, January 20, 2015. The unmanned rocket blasted off with a next-generation communications satellite designed to provide cellular-like voice and data services to U.S. military forces around the world. Picture taken using long exposure, looking over the campus of Florida Institute of Technologies in Melbourne, about 40 miles from the launch pad. REUTERS/Michael Brown

Snorkelers interact with a Florida manatee inside of the Three Sisters Springs in Crystal River, Florida January 15, 2015. On winter days, Florida manatees flock by the hundreds to the balmy waters of Three Sisters Springs, drawing crowds of snorkelers and kayakers to the U.S. sanctuary, where people may swim with the endangered species. But as tolerant as the gentle, whiskered sea giants can be of the accidental kicks and splashes of delighted tourists, wild life regulators want to ban most canoes and paddle boards and create people-free zones to protect the wintering "sea cow." Proposed limitations for this winter are awaiting approval by the U.S. Fish and Wildlife Service. REUTERS/Scott Audette

Patriotic Europeans Against the Islamisation of the West (PEGIDA) take part in a demonstration march in Leipzig, Germany, January 21, 2015. The weekly PEGIDA demonstrations began last October as a local protest against the building of new shelters for refugees, and have been growing in size. Counter-marches have taken place across Germany, with far larger numbers, and German Chancellor Angela Merkel has condemned the group in unusually strong language as racists "with hatred in their hearts." PEGIDA leaders deny they are racist and say they distinguish between the secular majority among Germany's 4 million Muslims and those trying to spread Muslim values. REUTERS/Hannibal Hanschke

Revelers throw turnips at the kneeling Jarramplas as he makes his way through the streets beating his drum during the Jarramplas traditional festival in Piornal, southwestern Spain, January 20, 2015. Even though the exact origins of the festival are not known, various theories exist including the mythological punishment of Caco by Hercules, a relation to ceremonies celebrated by the American Indians that were seen by the first conquerors, to a cattle thief ridiculed and expelled by his village neighbors. REUTERS/Sergio Perez

Model Cara Delevingne (R) poses for a selfie with a fan during a photo call at Selfridges department store in London January 20, 2015. REUTERS/Suzanne Plunkett

President Barack Obama blows a kiss to his wife, first lady Michelle Obama, who was sitting in the gallery, at the end of his State of the Union address to a joint session of the U.S. Congress on Capitol Hill in Washington, January 20, 2015. REUTERS/Jonathan Ernst

A man rides his horse through flames during the "Luminarias" annual religious celebration, on the night before Saint Anthony's, patron of animals, in the village of San Bartolome de los Pinares, January 16, 2015. According to tradition that dates back 500 years, people ride their horses through the narrow cobblestone streets of this small village to purify the animals with the smoke of the bonfires. REUTERS/Juan Medina

Ukrainian President Petro Poroshenko holds a fragment of a bus body which he says shows a Russian missile attack on a civilian bus as he addresses The Future of Ukraine event in the Swiss mountain resort of Davos, January 21, 2015. REUTERS/Ruben Sprich

A model presents a makeup creation during a show by Maybelline New York at Berlin Fashion Week in Berlin January 19, 2015. REUTERS/Fabrizio Bensch

Lindsey Vonn of the U.S. sprays champagne on the podium after winning the women's World Cup Super-G skiing race in Cortina D'Ampezzo January 19, 2015. Vonn became the most successful female in Alpine skiing World Cup history when she won a Super-G, her 63rd victory in the competition. REUTERS/Max Rossi