Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Halloween is here, but it doesn’t necessarily have to be downright frightening. For people who love fun DIYs that toe the line between cute and spooky, here is an exciting and easy DIY yarn pumpkin ...

Outraged residents of a Massachusetts town have expressed their fury at a cannabis dispensary that is preparing to open on their quaint main street. Kirkland Street in Camberville, Cambridge, is home ...