For nearly 60 years, the “moving sofa problem,” a long-standing mathematical puzzle, remained unsolved. Last year, a Korean ...

My sister followed all the rules I broke. For decades, I thought that made me smarter. Then she died, and I realized she’d ...

A new state law gave schools until Jan. 1, 2026 to set policies regulating students’ cellphone use, but several North ...

Introduction The inaugural installment of this piece was necessarily foundational, providing the background to the emergence of AI; how it transformed the digital space; applicable regulatory ...

Looking for help with today's New York Times Pips? We'll walk you through today's puzzle and help you match dominoes to tiles ...