In northern Europe, the most vulnerable periods of prehistory are not to be discovered in the earth but beneath the water. Off the coast of Aarhus, Denmark’s second-largest city, a Mesolithic ...

Underwater recovery off the Aegadian Islands in Sicily uncovered a Montefortino-style Roman war helmet. The helmet was likely part of the First Punic War from 241 B.C. Experts call the helmet one of ...

Divers plunging into Mexico's submerged Sac Actun cave system in 2007 stumbled upon a hidden world of Ice Age fossils, including remains of the short-faced bear, Arctotherium wingei, dating from ...

Each diver completed three 100-meter (328-ft) underwater swims using a flutter kick both with and without the exoskeleton and with it powered on and off. The test revealed impressive results, reducing ...