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| Evidence of ancient water on Mars | | Scientists have used data from past missions to speculate about channels on Mars. Evidence gathered by the Curiosity rover is the first direct observation of streambed material, a scientist said. |
| Actress sues filmmaker, YouTube | | One of the actresses in "Innocence of Muslims," the anti-Islam film that ignited a firestorm in the Muslim world, is taking her civil case against the producer of the film, Nakoula Basseley Nakoula, to federal court. |
| Campaign trail | | Mitt Romney and Barack Obama sharpened their messages on the economy on Thursday in the battleground state of Virginia, appearing in communities that illustrate the state's heavy reliance on military spending for business and jobs. |
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