As he watched the Boston Celtics play from the stands of TD Garden, one noise kept catching Adel Djellouli’s ear.

A curious trend circulating online has left many people puzzled. Videos show residents in Japan placing or dropping small marble balls on their bathroom floors and watching how they move. At first, ...

A megathrust earthquake is coming for the Pacific Northwest. But new imaging of undersea faults and fractures has given ...

One of the most deadly and dangerous volcano hazards isn’t lava. Mudflows called lahars can come without clear warning.