Karl Ritter

Climate negotiators salvaged a compromise deal in Lima early Sunday that sets the stage for a global pact ...

The search for a foreign underwater craft in waters off Stockholm has brought back memories of Sweden's submarine ...

Three researchers won a Nobel Prize on Wednesday for giving microscopes much sharper vision than was thought possible, ...

Japan's Isamu Akasaki and Hiroshi Amano and U.S. scientist Shuji Nakamura won the Nobel Prize in physics for ...