For more than a century the speed of light was treated as an unbreakable cosmic limit. Now physicists are revisiting that ...

At The Speed Of Light Time Stops… This video explores the fascinating phenomenon of time perception and its relation to speed ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

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 ...