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Scientists found a molecule crucial to perceiving the sensation of itching. It affects how the brain responds to serotonin, and may explain why anti-depressants that boost serotonin make some itch.

The Red Cross had the opportunity to explain how it spent almost half a billion dollars — but provided journalists with few answers.

He uttered the countdown heard 'round the world leading up to the launch of the first moon landing mission.

Prime Minister Tony Abbott, speaking in a radio interview, said his government would do "whatever is reasonably necessary" to stop asylum seekers from reaching Australian shores.

Gap held a conference call on Tuesday to discuss its restructuring plan. The news comes a day after Gap said it will close a quarter of its North American non-outlet stores.

Billionaire and reality TV fixture Donald Trump announced Tuesday that he is running for president. Trump has flirted with running before, but he is more serious this time.

A redesign of the denomination will add the portrait of an as-yet-undetermined famous American woman beginning in 2020.

An expert forager has a video and an app for finding weeds to make the ultimate locally grown salad. But even a master foraging app might not lead an amateur to success.

After a shooting at a Charleston, S.C., church left nine dead, President Obama noted, "Mass violence does not happen in other advanced countries," but tighter gun controls in the U.S. were unlikely.

Pope Francis blames climate change on apathy, political shortsightedness and a pursuit of profits. In a papal encyclical, he calls climate change one of the principal challenges facing humanity today.