Photos: 2012 Nobel Prize winners

Updated 1540 GMT (2340 HKT) October 15, 2012
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U.S. economist Lloyd Shapley smiles outside his home in Los Angeles after being notified that he won the 2012 Nobel Memorial Prize for Economics on Monday, October 15. He and Alvin Roth share the award for their work in market design and matching theory. Reuters/Landov
Alvin Roth receives congratulatory phone calls at his home in Menlo Park, California, on Monday, October 15, after winning the Nobel Memorial Prize in Economics, which he shared with Lloyd Shapley. Roth was "surprised" and "delighted" when he got the midnight call at his California home telling him he had won. Reuters/Landov
The Norwegian Nobel Committee in Oslo awarded the Nobel Peace Prize Friday to the European Union for peaceful reconciliation after World War II between former foes Germany and France, and for spreading democracy and human rights through Europe. Getty Images/file
Chinese writer Mo Yan won the 2012 Nobel Prize for literature on Thursday, October 11, for works which combine "hallucinatory realism" with folk tales, history and contemporary life grounded in his native land. Picture taken October 19, 2005. Reuters/Landov
Robert Lefkowitz, center, enters a party held for him at Duke University after winning the Nobel Prize in chemistry on Wednesday. Lefkowitz shares the prize with his former student, Brian Kobilka. MCT/Landov
Dr. Brian Kobilka, a professor of molecular and cellular physiology, stands in his laboratory at Stanford University. He shares the Nobel Prize in chemistry with Robert Lefkowitz of Duke University. Getty Images
Serge Haroche, a French physicist and professor at the College de France, shares the Nobel Prize in physics with David Wineland. AFP/Getty Images
David Wineland, winner of the 2012 Nobel Prize in physics, gives a tour Tuesday of the National Institute of Standards and Technology in Boulder, Colorado, where he works in the physics department. EPA/Landov
Kyoto University professor Shinya Yamanaka of Japan won the Nobel Prize in medicine for groundbreaking work on stem cells. He shares the prize with Sir John B. Gurdon of Britain. AFP/Getty Images
Sir John Gurdon speaks Monday at a press conference after being awarded the Nobel Prize in medicine. AFP/Getty Images