Time crystals, a collection of particles that "tick"—or move back and forth in repeating cycles—were first theorized and then ...

Russian spy satellite breakup in graveyard orbit raises debris concerns, revealing why satellite retirement rules and ...

The world is sliding into a new era of strategic risk in which weapons once confined to science fiction are edging toward ...

Did Chrys and Ellie survive the Aztec death whistle curse? Full recap, final loophole twist, and what the mid-credits scene ...

His new book examines the strength of the sport’s hold on society—and what ultimately might send it spiraling to its demise.

“We need to make sure that the story is told properly so that when the history books write this (sic), they don’t write about ...