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| Chinese actress feeds Kenya's orphan elephants | Solar plane leaves Calif. on cross-country trip | Bangladeshis turn rescuers after building collapse | Obama says 'couldn't be prouder' of Jason Collins |
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| Obama salutes national teacher of the year | Photo Essay of Boston Marathon aftermath | Obama pedals bike at 3rd White House science fair | Inmates, orchestra members perform behind bars |
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| Museum exhibitions come to movie theaters | Obama honors bombing victims in Boston | From Boston to Bay Area, running tributes abound | Racing helps Mass. father, disabled son forge bond |
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| Israel honors 6 million victims of Nazi Holocaust | Paralyzed ex-athlete's foundation helping others | Beavers help contain fuel spill, recover slowly | Obama gives Secret Service its 1st female director |
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| Saplings from Anne Frank's tree take root in US | Cities go dark for 'Earth Hour' | Museum to showcase contemporary Latin American art | Scientists find universe is 80 million years older |
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| Pakistani girl shot by Taliban returns to school | Japanese architect Toyo Ito wins Pritzker Prize | Physicists say they have found a Higgs boson | RI city wins $5M Bloomberg prize with word gap fix |
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| Sheryl Sandberg: On a mission to elevate women | Rosa Parks statue unveiled at Capitol | Future science: Using 3D worlds to visualize data | Scientists use 3-D printing to help grow an ear |
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| Summertime outdoor pianos returning to NYC | Snow-buried communities seek help from residents | Paralyzed woman uses her mind to control robot arm | |