When I was a teenager, I was—shockingly, I know—deeply nerdy. At a science-fiction convention, I bought a button that read, “186,282 miles/second: Not just a good idea, it’s the law.” It was poking ...

It may sound like an oxymoron, but inside a beam of light, there is darkness. Certain points within a complex light wave go completely dark, spots where the wave cancels itself out so thoroughly that ...

For the first time, physicists have observed that 'holes' in light can move faster than the light itself. They're known as phase singularities or optical vortices, and since the 1970s, scientists have ...