Discover the surprising truth about the speed of light and how it impacts our understanding of the universe. This video ...

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 ...

Look inside a science fiction computer, and you’ll probably see tubes and cubes that emit light. Of course, it’s for effect, ...

Neil deGrasse Tyson explores why the speed of light is a fundamental limit of the universe, shaping causality, time, and ...

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A gamma-ray burst (GRB) — the most energetic type of explosion in the universe since the Big Bang — is detected once every day, on average. But what happened on July 2, 2025, was highly unusual: ...

Cosmic speed limits can be a major inconvenience but they've rarely stopped science fiction in its tracks. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Science fiction authors and readers dream of travelling at the speed of light, but Einstein tells us we can’t. You might think that’s an arbitrary rule, but [FloatHeadPhysics] shows a different way to ...

Nearly 60 years ago, the original Star Trek series ignited a dream in the public’s imagination: that one day, people would travel the galaxy in ships propelled by faster-than-light “warp drives.” The ...

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 ...