Is this photo proof that Mars once had an intertwined inland waterway system? NASA scientists say that photos taken recently by the Curiosity Rover reveal diffinitive evidence that a river...

Virginia Tech College of Engineering researchers are working on U.S. Navy project dubbed Robojelly to put robot jellyfish in waters around the world. The purpose of Robojelly is to better...

Kapitänleutnant Günther Prien in 1940 Kriegsmarine Commander of Submarines Karl Dönitz devised a plan to attack Scapa Flow by submarine within days of the outbreak of war. Its goal would...