For those who have wrestled a bulky couch around a tight corner and lamented, “Will this even fit?” mathematicians have heard your pleas. Geometry’s “moving sofa problem a ...

Taliban officials have a plan to turn one of the country’s most remote corners into a global trade hub by linking the Afghan ...

A large storm will finish its cross-country trek at the end of the week, delivering rain, snow and ice to the Midwest and Northeast, which will result in widespread disruptions and hazardous travel.