A 400-foot-long granite structure off the coast of Brittany suggests late hunter-gatherers were already beginning to settle down.

REDSTONE ARSENAL, Ala. — If a technology isn’t intuitive, chances are, it won’t be used. True in everyday life and especially true in aviation when creating technology to support Army aviators.

Japanese students have engineered a bicycle capable of flight using only human effort, setting a rare precedent in ...