Without the force called friction, cars would skid off the roadway, humans couldn't stride down the sidewalk, and objects would tumble off your kitchen counter and onto the floor. Even so, how ...

We are at a critical time and supporting science journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen scientific ...

As man voyages farther toward the stars, and faster across the face of his own earth, the instruments by which he steers become vastly more important. And on planes or ships or spacecraft, the heart ...