Here's what you'll learn when you read this story: Although people often say nothing travels faster than the speed of light, this cosmic speed limit only pertains to particles with information or mass ...

A universe with half-speed light might never produce New Scientist readers capable of posing this question, notes one reader ...

A research group from the Technion-Israel Institute of Technology reports in Nature an unprecedented achievement in electron microscopy: the direct measurement of "dark points" within light waves. By ...

The hyperdrive from Star Wars appears to depict an ultra-relativistic motion through space, extremely close to the speed of light. Under the laws of relativity, you neither reach nor exceed the speed ...

Albert Einstein famously discovered that nothing with mass, not even supersonic sound, is faster than the speed of light. For over a century we have operated with this belief. But, in reality, we’ve ...

These theoretical particles ignore the basic structure of cause and effect. If scientists ever prove they’re real, tachyons would shatter our understanding of reality. But relativity also tells us ...

Bobby Moore explains how fast the speed of light travels.

Have we made an object that could travel at at least 1% the speed of light? — Anadi, age 14, Jammu and Kashmir, India Light is fast. In fact, it is the fastest thing that exists, and a law of the ...

Star Trek resident science advisor and astrophysicist Dr. Erin Macdonald in 2019, speaking about the importance of STEM education. Joe Scarnici/Getty Images Entertainment/Getty Images “What's great ...

Special relativity is one of the most strongly validated theories humanity has ever devised. It is central to everything from space travel and GPS to our electrical power grid. Central to relativity ...

In a Universe governed by General Relativity, filled with matter-and-energy, a static solution is not possible. That Universe must either expand or contract, with measurements revealing very quickly ...

The curious minds at What If examine the catastrophic kinetic energy and molecular destruction unleashed when a simple sewing needle impacts the Earth at the speed of light.