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In a significant leap toward next-generation lithi

Since its inception, nuclear energy has faced a ho

Ancient teeth found in Ethiopia belong to a never

Billions of light-years away, a

Carbon taxes are widely seen as one of the most ef

As glaciers melt, huge chunks of ice break free an

On May 12, 2008, the magnitude 7.

In the journal Nature, 21 leading scientists presc

Sun-powered fliers could use photophoretic forces