The province of Alberta is concerned that a multibillion-dollar hydroelectric dam proposed in northeastern British Columbia could increase mercury levels in fish and escalate the risk of floods or drought along the Peace River that flows through its province.
When Europe's Rosetta probe gets roused from its deep space slumber next month, scientists are hoping it will wake up fit and ready for the final stage of its daring mission to land a spacecraft on a comet.
Facebook released a list of the most talked about topic on its site during 2013, with Pope Francis topping the list, ahead of Royal Baby which came in at third and Miley Cyrus who came in at number seven.
NASA's Curiosity rover has uncovered signs of an ancient freshwater lake on Mars that may have teemed with tiny organisms for tens of millions of years, far longer than scientists had imagined, new research suggests.
Major technology companies, stung by revelations that the U.S. government collects people's personal data on their networks, on Monday issued an open letter to President Barack Obama asking for tighter controls on surveillance.