How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the ...

The speed of light is a fundamental constant, approximately 299,792,458 meters per second. It's the same for all observers and hasn't changed measurably over billions of years. Nothing can travel ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. In science fiction, spaceships moving at or beyond lightspeed enable ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

There's nothing faster than the speed of light. So, what would happen if a human managed to move at this universal speed limit? When you purchase through links on our site, we may earn an affiliate ...

The biggest issue you'd face is reaching that speed in the first place. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In science fiction, ...

All the Latest Game Footage and Images from A Slower Speed of Light A Slower Speed of Light is a first-person game prototype in which players navigate a 3D space while picking up orbs that reduce the ...

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 ...

Researchers built a computer that performs AI calculations at light speed in a single shot. The breakthrough can help AI ...