Flowers and a note honor the renowned theoretical physicist near the university church of St. Mary the Great in Cambridge, where a private funeral service was held Saturday. Joanna Kakissis/NPR hide caption
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Many Stories, One WorldA Palestinian hurls stones at Israeli troops during clashes at the Gaza-Israel border at a protest demanding the right to return to their homeland, in the southern Gaza Strip. Ibraheem Abu Mustafa/Reuters hide caption
An Iranian woman prays at St. Joseph's Cathedral in Tehran, Iran, a country where Christians and other religious groups have faced persecution. Atta Kenare/AFP/Getty Images hide caption
A screenshot from one of Comic Relief's videos from their Sport Relief campaign. Comic Relief via YouTube/Screenshot by NPR hide caption
A woman walks in Skovparken, an officially designated "ghetto" in the Danish city of Kolding. Sidsel Overgaard for NPR hide caption
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Russian President Vladimir Putin listens during a meeting with Health Minister Veronika Skvortsova and Alexander Bastrykin, the head of Russia's Investigative Committee, in Moscow on March 28. Mikhail Klimentyev/AFP/Getty Images hide caption
Pope Francis celebrates the Chrism Mass at St. Peter's Basilica on Holy Thursday in Vatican City. Alessandra Benedetti/Corbis/Getty Images hide caption