The most distant galaxies in this deep field image from the James Webb Space Telescope appear as small, faint dots—and are receding from us faster than the speed of light due to cosmic expansion. If ...

The speed of light is one of the most famous constants in physics, yet it has never been directly measured in the way most ...

Deep frying a turkey can often times be incredibly dangerous. So why don’t we try a different cooking method? Let’s send our turkey up into space, and have it come for Earth while moving at the speed ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still daring to test it. Some theories of quantum gravity suggest light might ...

As 2025 approaches, the aviation industry stands on the cusp of a technological revolution fueled by the introduction of super-fast microchips. These advanced semiconductors are set to redefine ...

The speed of light is the fastest anything can travel. What happens to a photon from a galaxy 25 million light years away on its journey toward Earth? When you purchase through links on our site, we ...

Imagine you’re in a car driving across the country watching the landscape. A tree in the distance gets closer to your car, passes right by you, then moves off again in the distance behind you. Of ...