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

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

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

The following is an extract from our Lost in Space-Time newsletter. Each month, we dive into fascinating ideas from around the universe. You can sign up for Lost in Space-Time here. If you’ve taken a ...

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 ...

So, you’re driving a car at half the speed of light. (Both hands on the wheel, please.) You turn on the headlights. How fast would you see this light traveling? What about a person standing by the ...

The first to attempt to calculate the speed of light was made in 1638, albeit unsuccessfully, by the “polymath from Pisa” Galileo Galilei, an Italian physicist, astronomer, natural philosopher, ...