Ahmadinejad: Iran is Obama's only way to stay in power

Iranian President Mahmoud Ahmadinejad has penned a letter to President Obama, telling his American counterpart that Iran is Obama’s only option for success, state-run media reported.

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Volcanic ash cloud causes air travel chaos

A cloud of ash from a volcano in Iceland swept toward mainland Europe, forcing up to 6,000 flight cancellations, officials said.

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Obama outlines new strategy for deep space exploration

President Obama pledged his full commitment to the space program, outlining a new strategy that ends current programs while funding new initiatives.

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Ash closes Europe airspace

European countries shut their airspace one after the other Thursday as a cloud of volcanic ash wafted over from Iceland and posed a danger to flights.

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Volcanic ash cloud grounds all British flights

A huge plume of volcanic ash sweeping east from Iceland forced the complete closure of British air space and disrupted flights across Northern Europe Thursday.

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