Scientists experimentally confirmed what we’ve known to be true for half a century—darkness can “travel” faster than light.

For the first time, researchers measured singularities in combined light and sound waves moving faster than the speed of ...

Here is a thought experiment for you: imagine shining a powerful laser at the moon, the beam cutting through space until it lands on its dusty grey surface. Now flick the laser so the spot of light ...

A team of researchers from the Technion-Israel Institute of Technology has achieved a major ...

If there is an absolute law in the universe, it’s that nothing can travel faster than the speed of light. For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still daring to test it. Some theories of quantum gravity suggest light might ...