AMHERST, Mass. — Brian House, in long beard and muck boots, leads me through a pine forest on a cold afternoon until, on the edge of a marsh, we find it: an array of three circles formed by plastic ...

Many people know that stars appear to twinkle because our atmosphere bends starlight as it travels to Earth. But stars also have an innate “twinkle” — caused by rippling waves of gas on their surfaces ...

Vision is often regarded as first among the human senses, as our eyes are the way most of us come to know the world. However, vision has its limits. Even now, as you use your eyes to read this, other ...