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 ...

If you've been on the Internet you've probably heard of the Slow Mo Guys, the YouTubers dedicated to filming everything from guns firing bullets at other bullets to Will Smith wielding a big ...

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 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, ...

Geraint Lewis receives funding from the Australian Research Council. According to our best understanding of physics, the fact space is expanding should influence the apparent flow of time, with the ...

A tiny optical device built into a silicon chip has achieved the slowest light propagation on a chip to date, reducing the speed of light by a factor of 1,200 in a study reported in Nature Photonics ...

The speed of light is often regarded as the ultimate cosmic speed limit, but researchers have now managed to slow it down dramatically—to just 61 kilometers per hour. This was achieved by using a Bose ...

A tiny optical device built into a silicon chip can reduce the speed of light by a factor of 1,200, a major step toward the realization of an ultra low-power, all-optical quantum data network. The ...