. A runner makes his way along a trail on a butte in front of a supermoon at Papago Park in Phoenix, Arizona
Competitors in the National Flipper Race run through Dam square in Amsterdam.
Guinea police fired tear gas to disperse protesters angry at the handling of overdue parliamentary elections. Opposition supporters rallied in the capital Conakry, with a number reported hurt after clashes with the police. Elections should have been held within six months of President Alpha Conde's inauguration in December 2010.
As Vladimir Putin was inaugurated once more as Russia's president, some protesters went ahead with unsanctioned demonstrations despite a heavy police presence - approximately 120 people were arrested.
The Queen set out the UK government's plans for the year ahead in a speech to both Houses of Parliament. Amid the usual pomp and ceremony of the State Opening of Parliament, the Queen said stabilising the economy was the coalition's priority
Nepalese police arrest squatters living beside Thapathali Hospital during clashes that erupted when police arrived to demolish illegal houses in Kathmandu.
Seasonal fog is illuminated by the lights of Cape Town harbour as the city prepares for the start of the southern hemisphere winter
Atletico Madrid's Falcao celebrates after scoring his second goal against Athletic Bilbao during their 3-0 win in the Europa League final football match at the National Arena in Bucharest.
Hundreds of thousands of public sector workers took part in a 24-hour UK-wide strike in a dispute with the government over pension changes
Former horse-rider Claire Lomas, 32, has a spinal injury but still completed the London Marathon after 16 days thanks to a pair of robotic legs which have allowed her to walk again.
The flame for the London 2012 torch relay and Olympic Games was lit during a ceremony in Olympia, Greece. It was kindled by actress Ino Menegaki, playing a high priestess, who caught the sun's rays in a parabolic mirror.
Bonus, Day in pictures: May 11, 2012
Riley McCormick of Canada dives during the Mens' 10m Platform Semi-Finals at the Fort Lauderdale Aquatic Center in Florida
Montgomery, 28, hugs her son - whom she has not seen in 17 months - at California's Institute for Women state prison, Chino. An annual Mother's Day event, Get On The Bus, brings children to visit their mothers in jail. Around 60% of parents in state prison report being held over 100 miles (161 km) from their children.
Rebekah Brooks, the former chief executive of News International, arrives to give evidence at the Leveson Inquiry into press ethics.
Relatives of a passenger on a Sukhoi Superjet 100 aircraft watch television news as it reports that rescuers at the wreckage of a Russian plane that crashed into mountains in Indonesia on Wednesday say they have found no sign of survivors.
Members of the Mars Science Laboratory team, which include rover drivers and scientists, run a test between an engineering model of the current rover on Mars (front) and its successor, dubbed Curiosity, in the desert near Baker, California.
Members of The Lions of Zululand cast shadows as they perform in the Diamond Jubilee Pageant in Windsor, England. The event celebrating the 60-year reign of Queen Elizabeth II includes 1,200 performers and 600 horses
Shipping containers dominate the view of Yangshan Port near Shanghai as Chinese stocks reported their biggest weekly loss in six weeks.
Straw shoes, or jipsin, hang from the bags of students in traditional scholars' costumes as they arrive at Myeongnyundang, a lecture hall at a Confucian shrine at Sungkyunkwan University in Seoul. The high school students were taking part in a re-enactment of the traditional state examinations Gwageo.
Swiss Minister of Environment, Transport, Energy and Communications Doris Leuthard (right) shows her new handbag to Swiss President Eveline Widmer-Schlumpf before the traditional von Wattenwyl talks in Bern.
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