As researchers restore rare sundials and mosaics, new questions arise about the final days of a high-ranking official's ...

A team of 15 specialist divers dove into waters off the coast of the Philippines last month—initiating a forensic recovery operation that one Pentagon scientist said could take "months or years." ...

The eight-foot-long underwater robot called Remus 300 dropped into the Atlantic Ocean 16 miles off Cape Hatteras, North Carolina, and descended toward the bottom, where it began to examine the wreck ...