A pyramid-shaped structure in Antarctica has sparked debates and conspiracy theories. While some speculate it's evidence of an ancient advanced civilization, scientists attribute the shape to ...

Associated PressLights on San Francisco landmarks, including the Golden Gate Bridge, were switched off for one hour Saturday to raise awareness for " Earth Hour", a global awareness campaign ...

From an Antarctic research base and the Great Pyramids of Egypt to the Empire State Building in New York and the Sears Tower in Chicago, illuminated patches of the globe went dark Saturday for ...

At Scott Base in Antarctica, New Zealand's 26-member winter team resorted to minimum safety lighting and switched off appliances and computers.