Looking for the best gifts for her? From under-$10 stocking stuffers to splurge-worthy home and kitchen upgrades, our top ...

Your old potting soil from the past season's containers doesn't have to go to waste. Here are some simple and easy ways to ...

The effect, first predicted over 60 years ago and regarding objects traveling near the speed of light, has been lent support ...

In 1887, one of the most important experiments in the history of physics took place. American scientists Michelson and Morley ...

Physicists tested light speed using cosmic gamma-ray bursts. Study confirms Einstein's prediction that all light colors travel at same speed.

They recreate how a camera would see objects traveling at 99.9% of the speed of light, revealing surprising relativistic ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

A subtle timing flash may expose the Unruh effect. The approach ties ordinary lab tools to deep quantum physics. Researchers ...