Chile's supreme court has halted construction on the Rio Cuervo hydroelectric project in the country's remote and pristine Patagonia region, after accepting an appeal from environmental groups.

Space & Earth - Environment

May 13, 2012 4 / 5 (4) 4

Facebook's big stock offering on Wall Street must be followed by an intensive debate on Main Street about social media's powerful impact on children, an expert on the topic says.

Technology - Internet

May 13, 2012 4 / 5 (1) 1