Think saying um and uh makes you sound unprepared? These tiny hesitation words play an important role in how we think, speak, and communicate.

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 ...

The life-size robotic elephants in Prasanth Prakashan’s backyard workshop have ears that flap, tails that swish and trunks that squirt water. But that’s about all they have in common with their ...

From chemical building blocks, scientists have created synthetic cells that have most of the hallmarks of life.